ci: fix workflows - env handling, key generation, update actions and deps

Author: bchou9

.github/workflows/test.yml

@@ -44,14 +44,14 @@ jobs:
           pytest tests/unit/ -v --cov=. --cov-report=xml --cov-report=html -n auto -m unit
       
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./backend/coverage.xml
           flags: backend-unit
           name: backend-unit-coverage
 
       - name: Upload coverage artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: backend-unit-coverage
           path: backend/htmlcov/
@@ -104,14 +104,14 @@ jobs:
           pytest tests/integration/ -v --cov=. --cov-report=xml --cov-report=html -n auto -m integration
       
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./backend/coverage.xml
           flags: backend-integration
           name: backend-integration-coverage
 
       - name: Upload coverage artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: backend-integration-coverage
           path: backend/htmlcov/
@@ -148,14 +148,14 @@ jobs:
           npm test -- --coverage --watchAll=false --testPathPattern="tests/unit"
       
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./frontend/coverage/coverage-final.json
           flags: frontend-unit
           name: frontend-unit-coverage
 
       - name: Upload coverage artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: frontend-unit-coverage
           path: frontend/coverage/
@@ -254,7 +254,7 @@ jobs:
       
       - name: Upload Playwright report
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: playwright-report
           path: frontend/playwright-report/
@@ -319,7 +319,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Download all coverage artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
 
       - name: Display coverage summary
         run: |