refactor(structure): remove leading gitea directory (#958)

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.

Reviewed-on: https://gitea.com/gitea/helm-gitea/pulls/958
Reviewed-by: DaanSelen <daanselen@noreply.gitea.com>
Co-authored-by: Markus Pesch <markus.pesch@cryptic.systems>
Co-committed-by: Markus Pesch <markus.pesch@cryptic.systems>

templates/gpg-secret.yaml

@@ -0,0 +1,17 @@
+{{- if .Values.signing.enabled -}}
+{{- if and (empty .Values.signing.privateKey) (empty .Values.signing.existingSecret) -}}
+  {{- fail "Either specify `signing.privateKey` or `signing.existingSecret`" -}}
+{{- end }}
+{{- if and (not (empty .Values.signing.privateKey)) (empty .Values.signing.existingSecret) -}}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "gitea.gpg-key-secret-name" . }}
+  namespace: {{ .Values.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "gitea.labels" . | nindent 4 }}
+type: Opaque
+data:
+  privateKey: {{ .Values.signing.privateKey | b64enc }}
+{{- end }}
+{{- end }}