chore: add templates, unittests and workflows

templates/config-act-runner.yaml

@@ -0,0 +1,15 @@
+{{- if .Values.actions.enabled }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "gitea.fullname" . }}-act-runner-config
+  namespace: {{ .Values.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "gitea.labels" . | nindent 4 }}
+data:
+  config.yaml: |
+    {{- with .Values.actions.statefulset.actRunner.config -}}
+    {{ . | nindent 4}}
+    {{- end -}}
+{{- end }}