chore(deps): update python docker tag to v3.11 (master) (#12)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| python | docker | minor | `3.10` -> `3.11` |

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.drone.yml

@@ -13,7 +13,7 @@ trigger:
 steps:
 # Testing
 - name: Testing
-  image: python:3.10  
+  image: python:3.11  
   commands:
   - pip install -r requirements.txt
   - python3 run_tests.py