chore: drop Python 3.11 support

Remove Python 3.11 from all CI workflow matrices and update requires-python
to >=3.12 in pyproject.toml. Also remove ubuntu-22.04 compatibility include
entries from unit-tests.yml that were tied to Python 3.11 testing.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

Author: feanil

.github/workflows/check-consistent-dependencies.yml

@@ -46,7 +46,7 @@ jobs:
       - uses: actions/setup-python@v6
         if: ${{ env.RELEVANT == 'true' }}
         with:
-          python-version: '3.11'
+          python-version: '3.12'
 
       - name: "Recompile requirements"
         if: ${{ env.RELEVANT == 'true' }}

.github/workflows/ci-static-analysis.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.11"
+          - "3.12"
         os: ["ubuntu-24.04"]
 
     steps:

.github/workflows/compile-python-requirements.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up Python environment
         uses: actions/setup-python@v6
         with:
-          python-version: "3.11"
+          python-version: "3.12"
 
       - name: Run make compile-requirements
         env:

.github/workflows/js-tests.yml

@@ -16,7 +16,7 @@ jobs:
         os: [ubuntu-latest]
         node-version: [20]
         python-version:
-          - "3.11"
+          - "3.12"
 
     steps:
       - uses: actions/checkout@v6

.github/workflows/lint-imports.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.11"
+          python-version: "3.12"
 
       - name: Install system requirements
         run: sudo apt update && sudo apt install -y libxmlsec1-dev

.github/workflows/migrations-check.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         os: [ubuntu-24.04]
         python-version:
-          - "3.11"
+          - "3.12"
         # 'pinned' is used to install the latest patch version of Django
         # within the global constraint i.e. Django==4.2.8 in current case
         # because we have global constraint of Django<4.2

.github/workflows/pylint-checks.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: 3.11
+          python-version: 3.12
 
       - name: Get pip cache dir
         id: pip-cache-dir

.github/workflows/quality-checks.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         os: [ubuntu-24.04]
         python-version:
-          - "3.11"
+          - "3.12"
         node-version: [20]
 
     steps:

.github/workflows/semgrep.yml

@@ -20,7 +20,7 @@ jobs:
       matrix:
         os: ["ubuntu-latest"]
         python-version:
-          - "3.11"
+          - "3.12"
 
     steps:
       - uses: actions/checkout@v6

.github/workflows/static-assets-check.yml

@@ -15,7 +15,7 @@ jobs:
       matrix:
         os: [ubuntu-24.04]
         python-version:
-          - "3.11"
+          - "3.12"
         node-version: [20]
         npm-version: [10.7.x]
         mongo-version: