build: add release-plz ci

.forgejo/workflows/push-main.yml

@@ -0,0 +1,32 @@
+name: Release Please
+
+permissions:
+  pull-requests: write
+  contents: write
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  release-plz:
+    name: Release-plz
+    runs-on: docker
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Run release-plz
+        uses: https://git.kemitix.net/kemitix/release-plz-action@dev
+        with:
+          backend: gitea
+        env:
+          GITHUB_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}