Revert environ copy

Author: Behemyth

tests/integration/examples/test_conan_cmake.py

@@ -30,24 +30,18 @@ def test_simple(example_runner: CliRunner) -> None:
         assert result.exit_code == 0, result.output
 
         # Run the CMake configuration command
-        cmake_result = subprocess.run(
-            ['cmake', '--preset=default'], capture_output=True, text=True, check=False, env=os.environ
-        )
+        cmake_result = subprocess.run(['cmake', '--preset=default'], capture_output=True, text=True, check=False)
 
         assert cmake_result.returncode == 0, f'CMake configuration failed: {cmake_result.stderr}'
 
         # Run the CMake build command
-        build_result = subprocess.run(
-            ['cmake', '--build', 'build'], capture_output=True, text=True, check=False, env=os.environ
-        )
+        build_result = subprocess.run(['cmake', '--build', 'build'], capture_output=True, text=True, check=False)
 
         assert build_result.returncode == 0, f'CMake build failed: {build_result.stderr}'
         assert 'Build finished successfully' in build_result.stdout, 'CMake build did not finish successfully'
 
         # Execute the built program and verify the output
-        program_result = subprocess.run(
-            ['build/HelloWorld'], capture_output=True, text=True, check=False, env=os.environ
-        )
+        program_result = subprocess.run(['build/HelloWorld'], capture_output=True, text=True, check=False)
 
         assert program_result.returncode == 0, f'Program execution failed: {program_result.stderr}'