ci(action): enhance GitHub Actions workflow with new job and env variable

- Add a new job `testing07` to the GitHub Actions workflow
- Set and display an environment variable with special characters in the new job

Signed-off-by: appleboy <appleboy.tw@gmail.com>

Author: appleboy

.github/workflows/main.yml

@@ -504,3 +504,18 @@ jobs:
           command_timeout: 30s
           script: |
             whoami
+
+  testing07:
+    name: some special character
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: Set Environment Variables
+        run: |
+          echo `PASS=3HUS$?8kLu)}` >> $GITHUB_ENV
+
+      - name: Show Environment Variables
+        run: |
+          echo $PASS