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/getting-started/installation.md

@@ -21,8 +21,8 @@ To install the latest stable version of Dokku, you can run the following shell c
 
 ```shell
 # for debian systems, installs Dokku via apt-get
-wget https://raw.githubusercontent.com/dokku/dokku/v0.23.7/bootstrap.sh;
-sudo DOKKU_TAG=v0.23.7 bash bootstrap.sh
+wget https://raw.githubusercontent.com/dokku/dokku/v0.23.8/bootstrap.sh;
+sudo DOKKU_TAG=v0.23.8 bash bootstrap.sh
 ```
 
 The installation process takes about 5-10 minutes, depending upon internet connection speed.