ci: add SSH server testing to GitHub Actions workflow

- Add a new job `testing-script-error` to the GitHub Actions workflow
- Use `actions/checkout@v4` to check out the code
- Create and run a new SSH server container using `lscr.io/linuxserver/openssh-server:latest`
- Capture the container's IP address and set it as an environment variable
- Add a step to test script errors with `continue-on-error: true`
- Configure the test script to connect to the SSH server and run a command that will fail (`ls /nonexistent`)

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

.github/workflows/main.yml

@@ -681,3 +681,44 @@ jobs:
           if echo "${{ steps.stdout02.outputs.stdout }}" | grep -q "True"; then
             echo "Output contains 'True'"
           fi
+
+  testing-script-error:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: create new ssh server
+        run: |
+          docker run -d \
+          --name=openssh-server \
+          --hostname=openssh-server \
+          -p 2222:2222 \
+          -e SUDO_ACCESS=false \
+          -e PASSWORD_ACCESS=true  \
+          -e USER_PASSWORD=password  \
+          -e USER_NAME=linuxserver.io \
+          --restart unless-stopped \
+          lscr.io/linuxserver/openssh-server:latest
+          docker exec openssh-server sh -c "hostname -i" > ip.txt
+          echo "REMOTE_HOST<<EOF" >> $GITHUB_ENV
+          cat ip.txt >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+          echo "======= container ip address ========="
+          cat ip.txt
+          echo "======================================"
+          sleep 2
+
+      - name: test script error
+        uses: ./
+        continue-on-error: true
+        with:
+          host: ${{ env.REMOTE_HOST }}
+          username: linuxserver.io
+          password: password
+          port: 2222
+          capture_stdout: true
+          script: |
+            #!/usr/bin/env bash
+            set -e
+            ls /nonexistent