Update Node.js version to 22 to match reference repository

Co-authored-by: renemadsen <[email protected]>

Author: Copilot

.github/workflows/dotnet-core-master.yml

@@ -75,7 +75,7 @@ jobs:
     - name: Use Node.js
       uses: actions/setup-node@v3
       with:
-        node-version: 20
+        node-version: 22
     - name: 'Preparing Frontend checkout'
       uses: actions/checkout@v3
       with:

.github/workflows/dotnet-core-pr.yml

@@ -68,7 +68,7 @@ jobs:
     - name: Use Node.js
       uses: actions/setup-node@v3
       with:
-        node-version: 20
+        node-version: 22
     - name: 'Preparing Frontend checkout'
       uses: actions/checkout@v3
       with: