ci: update python version in gh actions

Author: sanket-deepsource

.github/workflows/ci.yml

@@ -7,12 +7,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
 
-    - name: Set up Python 3.6
-      uses: actions/setup-python@v1
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v5
       with:
-        python-version: '3.6'
+        python-version: '3.12'
 
     - name: Install dependencies
       run: make pre-build