Release 0.26.3

# History

## 0.26.3

Install/update via the bootstrap script:

```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.26.3/bootstrap.sh
sudo DOKKU_TAG=v0.26.3 bash bootstrap.sh
```

### Bug Fixes

- #4889: @josegonzalez Skip herokuish version in report output and disable the herokuish builder on armhf architectures

docs/assets/versions.json

@@ -23,6 +23,6 @@
     "0.23.9",
     "0.24.10",
     "0.25.7",
-    "0.26.2"
+    "0.26.3"
   ]
 }