test: drop luaunit in favor of busted

.github/workflows/ci.yml

@@ -24,31 +24,29 @@ jobs:
     needs: lint
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: true
       - name: Install Lua
-        uses: leafo/gh-actions-lua@v9
+        uses: leafo/gh-actions-lua@v10
         with:
-          luaVersion: '5.1'
+          luaVersion: '5.1.5'
       - name: Install LuaRocks
         uses: leafo/gh-actions-luarocks@v4
       - name: Install Dependencies
         run: |
-          luarocks install luaunit
-          luarocks install mockagne
           luarocks install luabitop
+          luarocks install busted
       - name: Test
         run: |
           cd ./tests
-          lua core.lua
-          lua databases.lua
+          busted -o TAP .
   release:
     runs-on: ubuntu-latest
     needs: test
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Prepare Packager Arguments