Release 0.26.6

# History

## 0.26.6

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.26.6/bootstrap.sh
sudo DOKKU_TAG=v0.26.6 bash bootstrap.sh
```

### Bug Fixes

- #4919: @nerg4l fix: do not validate global flag as an app name
- #4918: @josegonzalez Use netrc binary to properly release dokku client homebrew formula

docs/getting-started/install/docker.md

@@ -3,7 +3,7 @@
 Pull the dokku/dokku image:
 
 ```shell
-docker pull dokku/dokku:0.26.5
+docker pull dokku/dokku:0.26.6
 ```
 
 Next, run the image.
@@ -18,7 +18,7 @@ docker container run \
   --publish 8443:443 \
   --volume /var/lib/dokku:/mnt/dokku \
   --volume /var/run/docker.sock:/var/run/docker.sock \
-  dokku/dokku:0.26.5
+  dokku/dokku:0.26.6
 ```
 
 The above command will start a new docker container that is ready when a message similar to `Runit started as PID 12345` appears.