ci(github): update workflow

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
 
   mypy:
-    name: Mypy
+    name: Static type checking
     runs-on: ubuntu-latest
     env:
       DISPLAY: ':99.0'
@@ -84,18 +84,14 @@ jobs:
 
       - name: Run mypy
         run: mypy --install-types --non-interactive --html-report mypy-report .
-        continue-on-error: true
 
       - name: Upload mypy results
         uses: actions/upload-artifact@v4
+        if: always()
         with:
           name: mypy-report
           path: mypy-report/
-
-      - if: failure()
-        run: |
-          echo "Mypy failed"
-          exit 1
+          if-no-files-found: error
 
   release:
     name: Release