Release 0.23.8

# History

## 0.23.8

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.23.8/bootstrap.sh
sudo DOKKU_TAG=v0.23.8 bash bootstrap.sh
```

### Bug Fixes

- #4437: @josegonzalez Switch to using GIT_DIR environment variable to fix Centos 7 support
- #4436: @josegonzalez Properly handle directory change when cleaning .git directory

### New Features

- #4428: @josegonzalez Bump azure ARM quickstart template on release

### Documentation

- #4435: @josegonzalez Change page title based on current page
- #4427: @josegonzalez Change process management doc references to make more sense

### Other

- #4438: @josegonzalez Split out nginx tests further to decrease overall CI runtime
- #4430: @dependabot-preview[bot] chore(deps): bump jetty-servlet from 11.0.0 to 11.0.1 in /tests/apps/java

docs/assets/favicons/browserconfig.xml

@@ -2,10 +2,10 @@
 <browserconfig>
   <msapplication>
     <tile>
-      <square70x70logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.7/docs/assets/favicons/mstile-70x70.png"/>
-      <square150x150logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.7/docs/assets/favicons/mstile-150x150.png"/>
-      <square310x310logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.7/docs/assets/favicons/mstile-310x310.png"/>
-      <wide310x150logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.7/docs/assets/favicons/mstile-310x150.png"/>
+      <square70x70logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.8/docs/assets/favicons/mstile-70x70.png"/>
+      <square150x150logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.8/docs/assets/favicons/mstile-150x150.png"/>
+      <square310x310logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.8/docs/assets/favicons/mstile-310x310.png"/>
+      <wide310x150logo src="https://cdn.jsdelivr.net/gh/dokku/dokku@v0.23.8/docs/assets/favicons/mstile-310x150.png"/>
       <TileColor>#da532c</TileColor>
     </tile>
   </msapplication>