fix: use explicit registry.nxtgauge.com:5000 with REGISTRY_* secrets

.woodpecker.yml

@@ -12,8 +12,7 @@ steps:
   - name: build-and-push
     image: woodpeckerci/plugin-kaniko:2.1.1
     settings:
-      registry:
-        from_secret: REGISTRY_HOSTPORT
+      registry: registry.nxtgauge.com:5000
       repo: nxtgauge-admin-solid
       dockerfile: Dockerfile.simple
       tags:
@@ -21,9 +20,9 @@ steps:
         - latest
         - high-performance-latest
       username:
-        from_secret: GHCR_USERNAME
+        from_secret: REGISTRY_USERNAME
       password:
-        from_secret: GHCR_TOKEN
+        from_secret: REGISTRY_PASSWORD
       insecure: true
       insecure_pull: true
       skip_tls_verify: true