chore: run pip check as part of tests

Author: mayeut

.github/workflows/build.yml

@@ -130,7 +130,7 @@ jobs:
         run: pip install $(ls sdist/*.tar.gz)[test] -Ccmake.define.BUILD_CMAKE_FROM_SOURCE=OFF
 
       - name: Test installed SDist
-        run: pytest ./tests
+        run: pip check && pytest ./tests
 
   check_dist:
     name: Check dist

pyproject.toml

@@ -86,7 +86,7 @@ build = "cp39-*"
 build-frontend = "build[uv]"
 build-verbosity = 1
 test-extras = "test"
-test-command = "pytest {project}/tests"
+test-command = ["pip check", "pytest {project}/tests"]
 test-skip = ["*-win_arm64", "*-macosx_universal2:arm64"]
 environment-pass = ["SETUPTOOLS_SCM_PRETEND_VERSION"]