feat: swap for - instead

Signed-off-by: kjuulh <contact@kjuulh.io>

templates/kustomize/base/service.yaml

@@ -5,13 +5,13 @@ metadata:
 spec:
   type: LoadBalancer
   ports:
-    - name: external_http
+    - name: external-http
       port: 3000
       targetPort: 3000 
-    - name: internal_http
+    - name: internal-http
       port: 3001
       targetPort: 3001 
-    - name: internal_grpc
+    - name: internal-grpc
       port: 3002
       targetPort: 3002