chore: update varnish logs instance label (#130)

Author: algchoo

charts/varnish/Chart.yaml

@@ -11,4 +11,4 @@ name: varnish
 sources:
   - https://varnish-cache.org/
   - https://artifacthub.io/packages/helm/varnish/varnish-cache
-version: 1.0.3
+version: 1.0.4

charts/varnish/templates/configmaps.yaml

@@ -104,7 +104,7 @@ data:
       path_targets = [{
         __address__ = "localhost",
         __path__    = "/var/log/varnish/varnishncsa-*.log",
-        instance    = "custom-varnish-cache.sample-apps.svc.cluster.local:9131",
+        instance    = "custom-varnish-cache.sample-apps.svc:9131",
         job         = "integrations/varnish-cache",
       }]
     }