use REGISTRY_PASSWORD secret for container registry auth

Built-in gitea.token lacks package scope. Use a Personal Access
Token stored as repository secret instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/docker-build.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           registry: git.cynarski.pl
           username: ${{ gitea.actor }}
-          password: ${{ gitea.token }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
       - name: "[code] repository checkout"
         uses: actions/checkout@v3
       - name: "[ledo] Image build"

.gitea/workflows/docker-tag.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           registry: git.cynarski.pl
           username: ${{ gitea.actor }}
-          password: ${{ gitea.token }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
       - name: "[code] repository checkout"
         uses: actions/checkout@v3
       - name: "[ledo] Image build"