refac(structure): remove leading gitea directory

The following pull request removes the `gitea` directory. With regard to
maintaining act_runners in a separate git repository or helm chart, this
additional directory becomes redundant.

unittests/helm/ingress/ingress.tpl.yaml

@@ -1,6 +1,6 @@
 suite: Test ingress tpl use
 templates:
-  - templates/gitea/ingress.yaml
+  - templates/ingress.yaml
 tests:
   - it: Ingress Class using TPL
     set: