chore(sdk): drop Python 3.9 support and update CI to Python 3.10

Signed-off-by: aniketpatil <[email protected]>

Author: aniketpatil

.github/workflows/sdk-upgrade.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: 3.10
 
       - name: Run SDK upgrade tests
         run: ./test/presubmit-test-sdk-upgrade.sh

.github/workflows/sdk-yapf.yml

@@ -24,7 +24,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
-        python-version: '3.9'
+        python-version: '3.10'
 
     - name: Install dependencies
       run: pip install yapf