Dbp 757 playwright tests (#30)

* DBP-757-add playwright_branch input variable
* DBP-757-playwright_branch Input var should be optional

.github/workflows/playwright.yml

@@ -1,21 +1,33 @@
 name: Playwright Tests
+
 on:
   workflow_call:
     inputs:
       frontendHostname:
         type: string
         description: 'Hostname of the frontend server (optional)'
         required: false
+      playwright_branch:
+        type: string
+        description: 'The name of the branch to be tested with Playwright.'
+        required: false
+        default: main
   workflow_dispatch:
     inputs:
       frontendHostname:
         type: string
         description: 'Hostname of the frontend server (optional)'
+        required: true
+      playwright_branch:
+        type: string
+        description: 'The name of the branch to be tested with Playwright.'
         required: false
+        default: main
   push:
     branches: [ main ]
 
 jobs:
+
   run_playwright_end2end_tests:
     continue-on-error: true
     timeout-minutes: 60
@@ -27,16 +39,14 @@ jobs:
     - uses: actions/checkout@v3
       with:
         repository: 'dBildungsplattform/schulportal-testautomatisierung'
+        ref: ${{ inputs.playwright_branch }}
     - uses: actions/setup-node@v3
       with:
         node-version: 16
-
     - name: Remove Microsoft APT and  Update Packages
       run: |
         sudo rm /etc/apt/sources.list.d/microsoft-prod.list
         sudo apt-get update || true
-
-
     - name: Install dependencies
       run: npm ci
     - name: Install Playwright Browsers
@@ -51,5 +61,4 @@ jobs:
       with:
         name: playwright-report
         path: playwright-report/
-        retention-days: 30npm login
-
+        retention-days: 30npm login