feat(helm): Add health probes to query-frontend

This change adds configurable `livenessProbe` and `startupProbe` to the
query-frontend container in the query-frontend pods.

Signed-off-by: Andreas Lindhé <7773090+lindhe@users.noreply.github.com>

Author: lindhe

production/helm/loki/templates/query-frontend/deployment-query-frontend.yaml

@@ -100,10 +100,18 @@ spec:
           {{- end }}
           securityContext:
             {{- toYaml .Values.loki.containerSecurityContext | nindent 12 }}
+          {{- with .Values.loki.livenessProbe }}
+          livenessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           {{- with .Values.loki.readinessProbe }}
           readinessProbe:
             {{- toYaml . | nindent 12 }}
           {{- end }}
+          {{- with .Values.loki.startupProbe }}
+          startupProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           volumeMounts:
             - name: config
               mountPath: /etc/loki/config