ci: run the bump workflow on Gitea Actions

The tap moved to git.trivk.dev. Gitea Runner has no parallel steps, so
the two bumps run one after the other. The scripts ask api.github.com
with curl instead of gh, which needs a GitHub token the Gitea job does
not have; two unauthenticated requests per run stay far under the limit.
The README now taps with the git.trivk.dev URL.

.github/workflows/bump.yml

@@ -11,8 +11,6 @@ permissions:
 jobs:
   bump:
     runs-on: ubuntu-latest
-    env:
-      GH_TOKEN: ${{ github.token }}
     steps:
       - uses: actions/checkout@v7
 
@@ -20,20 +18,20 @@ jobs:
           echo "BUMP_DIR=$RUNNER_TEMP/bumps" >> "$GITHUB_ENV"
           mkdir -p "$RUNNER_TEMP/bumps"
 
-      # Each script edits its own files and leaves committing to the next step,
-      # so the parallel steps never race for the git index.
-      - parallel:
-          - name: Bump netbird
-            run: .github/scripts/bump-netbird.sh
+      # Each script edits its own files and leaves committing to the last step, so every bump
+      # gets its own commit. The scripts ask api.github.com without a token: two requests per run
+      # is far below the 60 an hour GitHub allows per IP.
+      - name: Bump netbird
+        run: .github/scripts/bump-netbird.sh
 
-          - name: Bump zshellcheck
-            run: .github/scripts/bump-zshellcheck.sh
+      - name: Bump zshellcheck
+        run: .github/scripts/bump-zshellcheck.sh
 
       - name: Commit and push
         run: |
           set -euo pipefail
-          git config user.name "github-actions[bot]"
-          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git config user.name "gitea-actions"
+          git config user.email "gitea-actions@git.trivk.dev"
           shopt -s nullglob
           for record in "$BUMP_DIR"/*; do
             mapfile -t lines < "$record"