Update versions of deprecated actions

.github/workflows/unit_tests.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v4
     - name: Setup node
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ env.NODE_VERSION }}
     - name: Cache node modules
@@ -34,12 +34,12 @@ jobs:
     - name: Run webpack build
       run: npm run build:prod
     - name: Upload built files
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: bundles
         path: bundles/
     - name: Upload stats file
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: webpack-stats.json
         path: webpack-stats.json
@@ -67,7 +67,7 @@ jobs:
     - name: Run Jest
       run: npx jest --collectCoverage
     - name: Upload test coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         flags: typescript
 
@@ -127,7 +127,7 @@ jobs:
           pip install -r dev-requirements.txt
 
       - name: Download webpack stats
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: webpack-stats.json
 
@@ -140,7 +140,7 @@ jobs:
         run: py.test --cov=./ --cov-report=xml
 
       - name: Upload test coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           flags: python