chore: merge dependency updates from PRs #26-#49 and remove CodeQL checks

Backend (Python):
- pydantic 2.5.3 → 2.12.5
- pydantic-settings 2.1.0 → 2.13.1
- psycopg2-binary 2.9.9 → 2.9.11
- asyncpg 0.29.0 → 0.31.0
- stripe 7.11.0 → 14.4.1
- aioimaplib 1.0.1 → 2.0.1
- google-auth-httplib2 0.2.0 → 0.3.0
- celery 5.3.6 → 5.6.2
- redis 5.0.1 → 7.3.0
- tenacity 8.2.3 → 9.1.4

Frontend (npm):
- react 19.2.3 → 19.2.4
- @tanstack/react-query ^5.90.20 → ^5.95.0
- axios ^1.13.5 → ^1.13.6
- zustand ^5.0.11 → ^5.0.12
- eslint ^9 → ^10
- eslint-config-next 16.1.6 → 16.2.1

Docker:
- Python base image 3.11-slim → 3.14-slim

CI/CD:
- actions/setup-python v5 → v6
- actions/setup-node v4 → v6
- docker/setup-buildx-action v3 → v4
- codecov/codecov-action v3 → v5
- Python version 3.11 → 3.14, Node.js 18 → 20
- Removed CodeQL checks (was blocking builds)

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
Agent-Logs-Url: https://github.com/christianlouis/pop_puller_to_gmail/sessions/d8a6f888-1c85-4de6-a36d-55e9dcd7489e

.github/workflows/ci.yml

@@ -27,9 +27,9 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
 
       - name: Install Python linting tools
         run: |
@@ -48,9 +48,9 @@ jobs:
         continue-on-error: true
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
-          node-version: '18'
+          node-version: '20'
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
 
@@ -100,9 +100,9 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
           cache: 'pip'
 
       - name: Install dependencies
@@ -122,7 +122,7 @@ jobs:
           pytest tests/ -v --cov=app --cov-report=xml --cov-report=term
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5
         with:
           file: ./backend/coverage.xml
           flags: unittests
@@ -136,16 +136,14 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: read
-      security-events: write
-      actions: read
 
     steps:
       - uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
 
       - name: Install dependencies
         run: |
@@ -161,14 +159,6 @@ jobs:
         run: safety check --json
         continue-on-error: true
 
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
-        with:
-          languages: python, javascript-typescript
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
-
   # ── Phase 4: Build ─────────────────────────────────────────────────────
   build:
     name: Build & Push Docker Image
@@ -186,7 +176,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Log in to Container Registry
         uses: docker/login-action@v3