Release 0.22.9

# History

## 0.22.9

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.22.9/bootstrap.sh
sudo DOKKU_TAG=v0.22.9 bash bootstrap.sh
```

### Bug Fixes

- #4334: @josegonzalez allow git pushes to apps that already exist but have old names
- #4335: @josegonzalez Add error checking to plugin:install and plugin:update
- #4338: @josegonzalez Strip trailing slashes in hostname from web installer
- #4332: @josegonzalez Correct aws release check in release-plugin script
- #4311: @nisseknudsen Allow named volume mounts in regex
- #4320: @josegonzalez Hardcode cnb workdir to /workspace

### New Features

- #4321: @josegonzalez Add git version to output

### Refactors

- #4329: @josegonzalez Standardize apt-get usage

### Documentation

- #4323: @stianlik Fix typo in nginx documentation

### Tests

- #4331: @josegonzalez Switch to upstream bats-core
- #4330: @josegonzalez Switch to using uuidgen for unique app names

### Other

- #4325: @WaviestBalloon Updated bootstrap.sh to not show when $DOKKU_TAG equals nothing
- #4324: @dependabot-preview[bot] chore(deps): bump socket.io from 3.0.5 to 3.1.0 in /tests/apps/.websocket.disabled
- #4319: @josegonzalez Update ruby dependencies in test app
- #4312: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 187 to 188 in /tests/apps/php

docs/assets/style.css

@@ -39,13 +39,13 @@ h1 {
   font-size: 1.6em;
 }
 .header .navbar-brand a {
-  background-image: url(https://cdn.jsdelivr.net/gh/dokku/dokku@v0.22.8/docs/assets/dokku.png);
+  background-image: url(https://cdn.jsdelivr.net/gh/dokku/dokku@v0.22.9/docs/assets/dokku.png);
   text-indent: 40px;
 }
 .blurb {
   color: #424242;
   background-color: #ededed;
-  background-image: url(https://cdn.jsdelivr.net/gh/dokku/dokku@v0.22.8/docs/assets/gplaypattern.png);
+  background-image: url(https://cdn.jsdelivr.net/gh/dokku/dokku@v0.22.9/docs/assets/gplaypattern.png);
   padding: 45px 0;
   text-align: center;
 }