validate package.json content on each test workflow run

Author: brainelectronics

.github/workflows/test.yml

@@ -71,3 +71,10 @@ jobs:
       - name: Test built package
         run: |
           twine check dist/*
+      - name: Validate mip package file
+        run: |
+          upy-package \
+            --setup_file setup.py \
+            --package_changelog_file changelog.md \
+            --package_file package.json \
+            --validate

requirements-test.txt

@@ -1,6 +1,7 @@
 # List external packages here
 # Avoid fixed versions
-flake8>=5.0.0,<6
 coverage>=6.4.2,<7
+flake8>=5.0.0,<6
 nose2>=0.12.0,<1
+setup2upypackage>=0.4.0,<1
 yamllint>=1.29,<2