Tweak the chattymodule to not leak potentially information

I'd like to use this in screenshots, but the os.environ makes it a bit
tricky to do.

tests/data/src/chattymodule/setup.py

@@ -6,8 +6,10 @@ import sys
 from setuptools import setup
 
 print(f"HELLO FROM CHATTYMODULE {sys.argv[1]}")
-print(os.environ)
 print(sys.argv)
+print(sys.executable)
+print(sys.version)
+
 if "--fail" in sys.argv:
     print("I DIE, I DIE")
     sys.exit(1)

tests/functional/test_install.py

@@ -1739,7 +1739,7 @@ def test_install_editable_with_wrong_egg_name(
         "fragments."
     ) in result.stderr
     if resolver_variant == "2020-resolver":
-        assert "has inconsistent" in result.stderr, str(result)
+        assert "has inconsistent" in result.stdout, str(result)
     else:
         assert "Successfully installed pkga" in str(result), str(result)