Created new github action workflow for pull requests.

.github/workflows/ex3_interact_with_github_api.yaml

@@ -0,0 +1,32 @@
+name: interact with Github API
+on: 
+  pull_request:
+
+jobs:
+  create-issue:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Install curl
+        shell: bash
+        run: |
+          sudo apt update && sudo apt install curl -y
+      - name: Shorten SHA
+        id: short_sha
+        env:
+          SHA: ${{ github.sha }}
+        run: echo "sha_short=${SHA::7}" >> "$GITHUB_ENV"
+      - name: Request Github API
+        shell: bash
+        run: |
+            echo "https://api.github.com/repos/${{ github.repository }}/issues"
+            curl --request POST \
+            --url https://api.github.com/repos/${{ github.repository }}/issues \
+            --header 'authorization: Bearer ${{ secrets.PERSONAL_ACCESS_TOKEN }}' \
+            --header 'content-type: application/json' \
+            --data '{
+              "title": "Automated issue for commit: ${{ env.sha_short }}",
+              "body": "This issue was automatically created by the GitHub Action workflow **${{ github.workflow }}**. \n\n The commit hash was: _${{ env.sha_short }}_."
+              }' \
+            --fail

.github/workflows/ex3_switch_node_version.yaml

@@ -0,0 +1,24 @@
+name: Switch Node version
+on: 
+  pull_request:
+
+jobs:
+  run-npm-test:
+    runs-on: ubuntu-latest
+    env:
+      NODE_VERSION: '14'
+    steps:
+        - name: checkout
+          uses: actions/checkout@v3
+        - name : setup node
+          uses: actions/setup-node@v3
+          with:
+            node-version: "${{ env.NODE_VERSION }}"
+        - name: run test
+          shell: bash
+          run: |
+            npm install
+            npm test
+        - name: show node version
+          shell: bash
+          run: node -v