Merge pull request 'Update DeterminateSystems/update-flake-lock action to v28' (#223) from renovate/determinatesystems-update-flake-lock-28.x into main

.gitea/workflows/update.yml

@@ -21,7 +21,7 @@ jobs:
           extra_nix_config: |
             experimental-features = nix-command flakes            
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v27
+        uses: DeterminateSystems/update-flake-lock@v28
         with:
           token: ${{ secrets.GT_TOKEN_FOR_UPDATES }}
           pr-title: "[chore] Update flake.lock"