Bump version of dependencies (#2466)

#### What type of PR is this?

/kind cleanup
/area core
/milestone 2.0

#### What this PR does / why we need it:

This PR mainly upgrades version of dependencies and removes unused dependencies.

See the following references for more:

- https://github.com/spring-projects/spring-boot/releases/tag/v3.0.0-M5
- https://github.com/jhy/jsoup/releases/tag/jsoup-1.15.3
- https://github.com/spring-projects/spring-security/issues/6613

#### Does this PR introduce a user-facing change?

```release-note
None
```

build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '3.0.0-M4'
+    id 'org.springframework.boot' version '3.0.0-M5'
     id 'io.spring.dependency-management' version '1.0.12.RELEASE'
     id "checkstyle"
     id 'java'
@@ -38,14 +38,13 @@ bootJar {
     }
 }
 
-ext['h2.version'] = '2.1.210'
 ext {
     commonsLang3 = "3.12.0"
     base62 = "0.1.3"
-    pf4j = "3.6.0"
+    pf4j = '3.7.0'
     javaDiffUtils = "4.12"
     guava = "31.1-jre"
-    jsoup = "1.15.2"
+    jsoup = '1.15.3'
     jsonPatch = "1.13"
 }
 
@@ -63,10 +62,8 @@ dependencies {
     implementation 'org.springframework.security:spring-security-oauth2-jose'
     implementation 'org.springframework.security:spring-security-oauth2-resource-server'
 
-    implementation 'org.springdoc:springdoc-openapi-starter-webflux-ui:2.0.0-M3'
+    implementation 'org.springdoc:springdoc-openapi-starter-webflux-ui:2.0.0-M5'
     implementation 'org.openapi4j:openapi-schema-validator:1.0.7'
-    implementation "org.flywaydb:flyway-core"
-    implementation "org.flywaydb:flyway-mysql"
     implementation "net.bytebuddy:byte-buddy"
 
     implementation "org.apache.commons:commons-lang3:$commonsLang3"

src/main/java/run/halo/app/config/WebServerSecurityConfig.java

@@ -11,6 +11,7 @@ import java.util.Arrays;
 import java.util.List;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
 import org.springframework.http.HttpHeaders;
@@ -48,6 +49,7 @@ import run.halo.app.security.authorization.RequestInfoAuthorizationManager;
  *
  * @author johnniang
  */
+@Configuration
 @EnableWebFluxSecurity
 public class WebServerSecurityConfig {