feat: change workflow by using custom image

.github/workflows/semantic-release.yml

@@ -5,26 +5,19 @@ on:
     secrets:
       GH_TOKEN:
         description: 'PAT with repo access, required to trigger workflows on tag push'
-        required: true
+        required: false
 
 jobs:
   release:
-    name: Release
-    runs-on: ubuntu-latest
-
+    runs-on: ubuntu-custom
     steps:
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd #v6.0.2
         with:
           fetch-depth: 0
-          token: ${{ secrets.GH_TOKEN }}
-
-      - name: Setup semantic-release
-        uses: https://gitea.ldpt.fr/actions/semantic-release/setup-semrel@main
-        with:
-          node-version: "24"
+          token: ${{ secrets.GH_TOKEN || github.token }}
 
       - name: Run semantic-release
         env:
-          GH_TOKEN: ${{ secrets.GH_TOKEN }}
+          GITEA_TOKEN: ${{ secrets.GH_TOKEN || github.token }}
         run: semantic-release