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.

templates/servicemonitor.yaml

@@ -0,0 +1,43 @@
+{{- if and .Values.gitea.metrics.enabled .Values.gitea.metrics.serviceMonitor.enabled -}}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "gitea.fullname" . }}
+  namespace: {{ .Values.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "gitea.labels" . | nindent 4 }}
+    {{- if .Values.gitea.metrics.serviceMonitor.additionalLabels }}
+    {{- toYaml .Values.gitea.metrics.serviceMonitor.additionalLabels | nindent 4 }}
+    {{- end }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "gitea.selectorLabels" . | nindent 6 }}
+  endpoints:
+  - port: http
+    {{- if .Values.gitea.metrics.serviceMonitor.interval }}
+    interval: {{ .Values.gitea.metrics.serviceMonitor.interval }}
+    {{- end }}
+    {{- with .Values.gitea.metrics.serviceMonitor.relabelings }}
+    relabelings:
+      {{- . | toYaml | nindent 6 }}
+    {{- end }}
+    {{- if .Values.gitea.metrics.serviceMonitor.scheme }}
+    scheme: {{ .Values.gitea.metrics.serviceMonitor.scheme }}
+    {{- end }}
+    {{- if .Values.gitea.metrics.serviceMonitor.scrapeTimeout }}
+    scrapeTimeout: {{ .Values.gitea.metrics.serviceMonitor.scrapeTimeout }}
+    {{- end }}
+    {{- with .Values.gitea.metrics.serviceMonitor.tlsConfig }}
+    tlsConfig:
+      {{- . | toYaml | nindent 6 }}
+    {{- end }}
+    {{- if .Values.gitea.metrics.token }}
+    authorization:
+      type: Bearer
+      credentials:
+        name: {{ include "gitea.metrics-secret-name" . }}
+        key: token
+        optional: false
+    {{- end }}
+{{- end -}}