Format test workflow file

Author: rbaltrusch

.github/workflows/tests.yaml

@@ -1,32 +1,27 @@
 name: Test
-
-on: [ push, pull_request ]
+on:
+- push
+- pull_request
 
 jobs:
-
   test:
     strategy:
       fail-fast: false
       matrix:
-        lua_version: [ "5.4", "5.3", "5.2", "5.1", 'luajit-2.0', 'luajit-2.1' ]
+        lua_version: ["5.4", "5.3", "5.2", "5.1"]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-
       - name: Set up Lua
         uses: luarocks/gh-actions-lua@master
         with:
           luaVersion: ${{ matrix.lua_version }}
-
       - name: Set up LuaRocks
         uses: luarocks/gh-actions-luarocks@master
-
       - name: Setup dependencies
         run: luarocks install luaunit
-
       - name: Build luarock
         run: luarocks build streams-scm-1.rockspec
-
-      - name: Run regression tests
+      - name: Run tests
         run: luarocks test