Install AWS CLI in demo-video workflow job (#976)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: thomasnordquist <7721625+thomasnordquist@users.noreply.github.com>

.github/workflows/tests.yml

@@ -73,6 +73,13 @@ jobs:
           TIMESTAMP=$(date +%Y%m%d-%H%M%S)
           FILENAME="pr-${{ github.event.pull_request.number }}-${TIMESTAMP}.gif"
           echo "filename=${FILENAME}" >> $GITHUB_OUTPUT
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.10'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install awscli
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v4
         with: