fix: update Gitea storage class and reduce persistent volume sizes

Signed-off-by: zhenyus <zhenyus@mathmast.com>

freeleaps/helm-pkg/3rd/gitea/values.alpha.yaml

@@ -1,5 +1,5 @@
 global:
-  storageClass: "azure-blob-disk-std-lrs"
+  storageClass: "azure-disk-std-lrs"
 namespace: "freeleaps-alpha"
 replicaCount: 1
 strategy:
@@ -42,7 +42,7 @@ persistence:
   create: true
   mount: true
   claimName: freeleaps-alpha-gitea-shared-storage
-  size: 10Gi
+  size: 8Gi
   accessModes:
     - ReadWriteOnce
   annotations:
@@ -117,7 +117,7 @@ postgresql:
           postgresql: 5432
   primary:
     persistence:
-      size: 8Gi
+      size: 5Gi
   volumePermissions:
     enabled: true
 checkDeprecation: true