feat(ci): add test for job-notification action

Author: helenff

.github/workflows/test.yml

@@ -0,0 +1,43 @@
+name: Test
+
+on: [push, workflow_dispatch]
+
+jobs:
+  test:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.SCRIBD_GITHUB_GENERIC_TOKEN }}
+      - name: Run action
+        uses: ./
+        with:
+          token: ${{ secrets.SCRIBD_SLACK_GENERIC_TOKEN }}
+          channel: test-release-notification
+  test-custom-message:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.SCRIBD_GITHUB_GENERIC_TOKEN }}
+      - name: Run action
+        uses: ./
+        with:
+          token: ${{ secrets.SCRIBD_SLACK_GENERIC_TOKEN }}
+          channel: test-release-notification
+          message: <https://scribd.com|Custom message>
+  test-overwrite-repository:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.SCRIBD_GITHUB_GENERIC_TOKEN }}
+      - name: Run action
+        uses: ./
+        with:
+          token: ${{ secrets.SCRIBD_SLACK_GENERIC_TOKEN }}
+          channel: test-release-notification
+          repository: scribd/node-chassis