fix(ci): use git clone instead of actions/checkout for Forgejo runner

.forgejo/workflows/bump-version.yml

@@ -14,10 +14,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          token: ${{ secrets.FORGEJO_TOKEN }}
+        env:
+          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
+        run: |
+          set -euo pipefail
+          HOST=${GITHUB_SERVER_URL#http://}
+          git clone "http://x-access-token:${FORGEJO_TOKEN}@${HOST}/${GITHUB_REPOSITORY}.git" .
+          git checkout "$GITHUB_SHA"
+          git config user.name  "forgejo-actions[bot]"
+          git config user.email "forgejo-actions[bot]@noreply.local"
 
       - name: Skip if latest commit is already a release commit
         run: |
@@ -59,11 +64,12 @@ jobs:
           echo "Bumping $CURRENT → $NEXT"
 
       - name: Update VERSION and push bump commit
+        env:
+          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
         run: |
           NEXT="${{ steps.next.outputs.next }}"
           printf '%s\n' "$NEXT" > VERSION
-          git config user.name  "forgejo-actions[bot]"
-          git config user.email "forgejo-actions[bot]@noreply.${FORGEJO_DOMAIN:-src.sersofts.org}"
           git add VERSION
           git commit -m "chore(release): bump version to $NEXT"
-          git push origin HEAD:main
+          HOST=${GITHUB_SERVER_URL#http://}
+          git push "http://x-access-token:${FORGEJO_TOKEN}@${HOST}/${GITHUB_REPOSITORY}.git" HEAD:main

.forgejo/workflows/release.yml

@@ -34,16 +34,18 @@ jobs:
             ext: '.exe'
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          token: ${{ secrets.FORGEJO_TOKEN }}
+        env:
+          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
+        run: |
+          set -euo pipefail
+          HOST=${GITHUB_SERVER_URL#http://}
+          git clone "http://x-access-token:${FORGEJO_TOKEN}@${HOST}/${GITHUB_REPOSITORY}.git" .
+          git checkout "$GITHUB_SHA"
 
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: https://code.forgejo.org/actions/setup-go@v5
         with:
           go-version: '1.26'
-          cache: true
 
       - name: Build binary
         env: