Add CI action for running tests

.github/workflows/CI.yml

@@ -0,0 +1,55 @@
+name: CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 1 * *'
+
+jobs:
+  test:
+    name: ${{ matrix.lisp }} / ${{ matrix.quicklisp-dist }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        lisp: [sbcl-bin, ccl-bin/1.12.1, ecl/21.2.1]
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        quicklisp-dist:
+          - quicklisp
+          - ultralisp
+        exclude:
+          - os: windows-latest
+            lisp: ccl-bin/1.12.1
+          - os: windows-latest
+            lisp: ecl/21.2.1
+    env:
+      LISP: ${{ matrix.lisp }}
+      QUICKLISP_DIST: ${{ matrix.quicklisp-dist }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Lisp
+        continue-on-error: true
+        uses: 40ants/setup-lisp@v2
+        with:
+          qlfile-template: |
+            {% ifequal quicklisp_dist "ultralisp" %}
+            dist ultralisp http://dist.ultralisp.org
+            {% endifequal %}
+
+      - name: Run tests (Non-Windows)
+        if: runner.os != 'Windows'
+        shell: bash
+        run: |
+          ros install neil-lindquist/ci-utils
+          run-fiveam -e t -l ginkgo-time/test :ginkgo-time
+
+      - name: Run tests (Windows)
+        if: runner.os == 'Windows'
+        shell: msys2 {0}
+        run: |
+          ros install neil-lindquist/ci-utils
+          run-fiveam -e t -l ginkgo-time/test :ginkgo-time