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/deployment/basic.yaml

@@ -3,11 +3,11 @@ release:
   name: gitea-unittests
   namespace: testing
 templates:
-  - templates/gitea/deployment.yaml
-  - templates/gitea/config.yaml
+  - templates/deployment.yaml
+  - templates/config.yaml
 tests:
   - it: renders a deployment
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     asserts:
       - hasDocuments:
           count: 1
@@ -16,7 +16,7 @@ tests:
           apiVersion: apps/v1
           name: gitea-unittests
   - it: deployment labels are set
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     set:
       deployment.labels:
         hello: world
@@ -30,7 +30,7 @@ tests:
           content:
             hello: world
   - it: "injects TMP_EXISTING_ENVS_FILE as environment variable to 'init-app-ini' init container"
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     asserts:
       - contains:
           path: spec.template.spec.initContainers[1].env
@@ -38,7 +38,7 @@ tests:
             name: TMP_EXISTING_ENVS_FILE
             value: /tmp/existing-envs
   - it: "injects ENV_TO_INI_MOUNT_POINT as environment variable to 'init-app-ini' init container"
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     asserts:
       - contains:
           path: spec.template.spec.initContainers[1].env
@@ -46,7 +46,7 @@ tests:
             name: ENV_TO_INI_MOUNT_POINT
             value: /env-to-ini-mounts
   - it: CPU resources are defined as well as GOMAXPROCS
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     set:
       resources:
         limits:
@@ -74,7 +74,7 @@ tests:
               cpu: 100ms
               memory: 100Mi
   - it: Init containers have correct volumeMount path
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     set:
       initContainersScriptsVolumeMountPath: "/custom/init/path"
     asserts:
@@ -85,7 +85,7 @@ tests:
           path: spec.template.spec.initContainers[*].volumeMounts[?(@.name=="config")].mountPath
           value: "/custom/init/path"
   - it: Init containers have correct volumeMount path if there is no override
-    template: templates/gitea/deployment.yaml
+    template: templates/deployment.yaml
     asserts:
       - equal:
           path: spec.template.spec.initContainers[*].volumeMounts[?(@.name=="init")].mountPath