fix(monitoring): addl service monitors under prometheus heading

chart/templates/monitoring/monitoring-helmrelease.yaml

@@ -56,20 +56,21 @@ spec:
       imagePullSecrets:
       - name: private-registry
     {{- if .Values.addons.gitlabRunner.enabled }}
-    additionalServiceMonitors:
-    {{- if .Values.addons.gitlabRunner.enabled }}
-    - name: gitlab-gitlab-runner
-      namespaceSelector:
-        matchNames:
-        - gitlab
-      selector:
-        matchLables:
-          release: gitlab-runner
-      endpoints:
-      - port: metrics
-        path: /metrics
-    {{- end }}
-    {{- end }}
+    prometheus:
+      additionalServiceMonitors:
+      {{- if .Values.addons.gitlabRunner.enabled }}
+      - name: gitlab-gitlab-runner
+        namespaceSelector:
+          matchNames:
+          - gitlab
+        selector:
+          matchLables:
+            release: gitlab-runner
+        endpoints:
+        - port: metrics
+          path: /metrics
+      {{- end }}
+    {{- end -}}
 
   # TODO: DRY this up
   {{- if or .Values.gatekeeper.enabled .Values.istio.enabled }}