#### What type of PR is this?
/kind cleanup
/area core
/milestone 2.7.x
#### What this PR does / why we need it:
Upgrade Spring Boot to 3.1.1. See https://github.com/spring-projects/spring-boot/releases/tag/v3.1.1 for more.
#### Does this PR introduce a user-facing change?
```release-note
升级 Spring Boot 至 3.1.1
```
#### What type of PR is this?
/kind feature
/area core
#### What this PR does / why we need it:
This PR introduces https://github.com/resilience4j/resilience4j to archive the feature. The login endpoint has limited login failures at a rate of 3 per minute.
See https://github.com/halo-dev/halo/issues/4044 for more.
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/4044
#### Special notes for your reviewer:
1. Start Halo.
2. Try to login with incorrect credential 4 times
3. Check the response.
#### Does this PR introduce a user-facing change?
```release-note
增加登录失败次数限制功能
```
#### What type of PR is this?
/kind improvement
/area core
#### What this PR does / why we need it:
Replace R2DBC MySQL driver to io.asyncer:r2dbc-mysql. See https://github.com/halo-dev/halo/issues/3804 for more.
Please note that there will be an error like below when starting up Halo on MacOS:
```java
2023-05-09T14:24:45.161+08:00 ERROR 4668 --- [ restartedMain] i.n.r.d.DnsServerAddressStreamProviders : Unable to load io.netty.resolver.dns.macos.MacOSDnsServerAddressStreamProvider, fallback to system defaults. This may result in incorrect DNS resolutions on MacOS. Check whether you have a dependency on 'io.netty:netty-resolver-dns-native-macos'. Use DEBUG level to see the full stack: java.lang.UnsatisfiedLinkError: failed to load the required native library
```
After manual test, I haven't found any problems caused by the error. And this only occurs on MacOS when developing.
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/3804
#### Special notes for your reviewer:
Steps to test:
1. Start up a MySQL server, e.g.:
```bash
docker run -it --rm --name halodb -p 3306:3306 -e MYSQL_ROOT_PASSWORD=openmysql -e MYSQL_DATABASE=halo mysql:8
```
3. Start Halo with mysql profile active
```bash
make -C console dev
./gradlew bootRun --args="--spring.profiles.active=dev,mysql --halo.plugin.runtime-mode=deployment"
```
5. Check the functionality of Halo
#### Does this PR introduce a user-facing change?
```release-note
替换 R2DBC MySQL 驱动为：io.asyncer:r2dbc-mysql
```
#### What type of PR is this?
/kind cleanup
/area core
/milestone 2.6.x
#### What this PR does / why we need it:
Upgrade to Spring Boot 3.1.0, please refer to <https://github.com/spring-projects/spring-boot/releases/tag/v3.1.0>.
#### Does this PR introduce a user-facing change?
```release-note
升级 Spring Boot 至 3.1.0
```
#### What type of PR is this?
/kind cleanup
/area core
#### What this PR does / why we need it:
Upgrade to Spring Boot 3.0.6.
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/3829
#### Does this PR introduce a user-facing change?
```release-note
升级 Spring Boot 至 3.0.6
```
#### What type of PR is this?
/kind feature
/area core
#### What this PR does / why we need it:
Use Gradle plugin `maven-publish` to publish Halo modules(`platform.application`, `platform.plugin` and `api`) to Maven central repository.
```bash
# Try to publish to Maven local repository.
./gradlew publish
# Really publish to Maven central repository.
./gradlew -Prelease publish -PossrhUsername=username -PossrhPassword=password
```
Note that currently we only support manually publishing.
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/2730
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/kind cleanup
/area core
#### What this PR does / why we need it:
See https://github.com/halo-dev/halo/issues/3600 for more.
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/3600
#### Special notes for your reviewer:
We can follow the commands below to test it:
```bash
# Start up MariaDB
docker run -d --env MARIADB_USER=halo -p 3306:3306 --env MARIADB_PASSWORD=mariadb --env MARIADB_ROOT_PASSWORD=mariadb -e MARIADB_DATABASE=halo mariadb:latest
# Start up Halo
make -C console dev
./gradlew bootRun --args="--spring.profiles.active=dev,mariadb"
```
#### Does this PR introduce a user-facing change?
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```release-note
升级至 MariaDB R2DBC connector 1.1.4
```
#### What type of PR is this?
/kind cleanup
/area core
#### What this PR does / why we need it:
This PR totally refactor project structure for a better plugin development. Now we can maintain and publish api and platform modules at Halo application side, which will be references by plugins.
Currently, we can execute command `./gradlew clean publish` to publish api and platform modules into **local** Maven repository, so that we can refer these dependencies (`run.halo.tools.platform:plugin:2.4.0-SNAPSHOT` and `run.halo.app:api:2.4.0-SNAPSHOT`) in plugin projects.
I will make another pull request to publish api library and platforms into Maven central repository.
**Modules explanation**:
- API module contains common classes which might be used by plugins.
- Plugin Platform module contains dependency declarations of other plugin API modules.
- Application Platform module contains dependency declarations application module might uses.
If we want to build application only(exclude check and jar), we have to execute the command below:
```bash
./gradlew clean :application:build -x :application:check -x :application:jar
```
The executable Jar will be generated at folder `application/build/libs/`.
If we want to build a Docker image, we could execute the command below:
```bash
docker build -t johnniang/halo:project-structure .
# Test the Docker image
docker run -it --rm -p8090:8090 johnniang/halo:project-structure
```
#### Which issue(s) this PR fixes:
Fixes https://github.com/halo-dev/halo/issues/2730
#### Special notes for your reviewer:
#### Does this PR introduce a user-facing change?
```release-note
重构项目结构
```
John Niang