patch: fix docker login during push stage (#18)

Co-authored-by: Madison Grubb <madison@elastiflow.com>
Reviewed-on: #18

.gitea/workflows/push.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Log in to container registry
         uses: docker/login-action@v4
         with:
-          registry: ${{ replace(replace(github.server_url, 'https://', ''), 'http://', '') }}
+          registry: git.keligrubb.com
           username: ${{ github.actor }}
           password: ${{ secrets.KESTRELOS_REPO_TOKEN }}
 
@@ -42,7 +42,7 @@ jobs:
 
       - name: Push Docker image (all tags from .tags)
         run: |
-          REGISTRY="${GITHUB_SERVER_URL#https://}"
+          REGISTRY="git.keligrubb.com"
           IMAGE="$REGISTRY/${{ github.repository }}"
           while read -r tag; do
             docker tag kestrelos:built "$IMAGE:$tag"