Merge branch 'main' into tutorial_openapi_generation

Author: GuentherJulian

.github/workflows/buildMain.yml

@@ -49,6 +49,8 @@ jobs:
           path: playbooks
 
       - uses: actions/setup-node@v2
+        with:
+          node-version: '12'
 
       - name: install TS
         run: npm install typescript

.github/workflows/buildPullRequest.yml

@@ -49,6 +49,8 @@ jobs:
           path: playbooks
 
       - uses: actions/setup-node@v2-beta
+        with:
+          node-version: '12'
 
       - name: install TS
         run: npm install typescript

.github/workflows/syntaxCheckPullRequest.yml

@@ -13,6 +13,8 @@ jobs:
         uses: actions/checkout@v2
       - name: Install node environment
         uses: actions/setup-node@v2-beta
+        with:
+          node-version: '12'
       - name: npm install
         run: npm install
       - name: Select Changed Files
@@ -55,6 +57,8 @@ jobs:
           ref: ${{needs.setup-matrix.outputs.checkout_ref}}
           path: playbooks
       - uses: actions/setup-node@v2-beta
+        with:
+          node-version: '12'
       - name: install TS
         run: npm install typescript
       - name: npm install