chore: update default theme to 1.3.0 (#3868)

#### What type of PR is this?

/kind improvement

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

升级默认主题的版本为 1.3.0:https://github.com/halo-dev/theme-earth/releases/tag/v1.3.0

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

```release-note
None
```
pull/3870/merge
Ryan Wang 2023-04-28 10:36:17 +08:00 committed by GitHub
parent a0265d2e6b
commit 6209afb912
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