fix file descriptor leak in cmd.run()

we were leaking pipes.

pkgs/clan-cli/clan_cli/cmd.py

@@ -120,13 +120,13 @@ def run(
     tstart = datetime.datetime.now(tz=datetime.UTC)
 
     # Start the subprocess
-    process = subprocess.Popen(
+    with subprocess.Popen(
         cmd,
         cwd=str(cwd),
         env=env,
         stdout=subprocess.PIPE,
         stderr=subprocess.PIPE,
-    )
+    ) as process:
         stdout_buf, stderr_buf = handle_output(process, log)
 
         if input:

pkgs/clan-cli/pyproject.toml

@@ -35,6 +35,7 @@ log_format = "%(levelname)s: %(message)s\n       %(pathname)s:%(lineno)d::%(func
 addopts = "--cov . --cov-report term --cov-report html:.reports/html --no-cov-on-fail --durations 5 --color=yes --new-first -n auto" # Add --pdb for debugging
 norecursedirs = "tests/helpers"
 markers = ["impure", "with_core"]
+filterwarnings = "default::ResourceWarning"
 
 [tool.mypy]
 python_version = "3.12"