ci: add release-please + luarocks workflows

.github/workflows/luarocks.yaml

@@ -0,0 +1,31 @@
+---
+name: Push to Luarocks
+
+on:
+  push:
+    tags:
+      - '*'
+  release:
+    types:
+      - created
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  luarocks-upload:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Required to count the commits
+      - name: Get Version
+        run: echo "LUAROCKS_VERSION=$(git describe --abbrev=0 --tags)" >> $GITHUB_ENV
+      - name: LuaRocks Upload
+        uses: nvim-neorocks/luarocks-tag-release@v7
+        env:
+          LUAROCKS_API_KEY: ${{ secrets.LUAROCKS_API_KEY }}
+        with:
+          version: ${{ env.LUAROCKS_VERSION }}
+          test_interpreters: ""
+          dependencies: |
+            rocks.nvim >= 1.19.0

.github/workflows/release-please.yaml

@@ -0,0 +1,22 @@
+---
+permissions:
+  contents: write
+  pull-requests: write
+
+name: Release Please
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    name: release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v4
+        with:
+          release-type: simple
+          token: ${{ secrets.PAT }}