Update CI workflow action to use Node 20 after deprecation of Node 16

Author: kevwhitt-hee

.github/workflows/continuous-integration-workflow.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 20
 
       - name: Typescript install
         run: yarn install --frozen-lockfile