Initial version, pending windows

.github/workflows/busted.yml

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+name: Busted
+
+on: [push, pull_request]
+
+jobs:
+  busted:
+    strategy:
+      fail-fast: false
+      matrix:
+        lua_version: ["luajit-openresty", "luajit-2.1.0-beta3", "luajit-git"]
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup ‘lua’
+        uses: jkl1337/gh-actions-lua@master
+        with:
+          luaVersion: ${{ matrix.lua_version }}
+      - name: Setup ‘luarocks’
+        uses: jkl1337/gh-actions-luarocks@master
+      - name: Setup dependencies
+        run: |
+          luarocks install busted
+          luarocks install luacov-coveralls
+      - name: Build C library
+        run: |
+          luarocks make --no-install
+      - name: Run busted tests
+        run: busted -c -v
+      - name: Report test coverage
+        if: success()
+        continue-on-error: true
+        run: luacov-coveralls -e .luarocks -e spec
+        env:
+          COVERALLS_REPO_TOKEN: ${{ github.token }}