don't resolve absolute paths for flake uri

pathlib.Path("git+file:///foo").resolve() might resolve to urls like
PosixPath('/home/joerg/work/clan/clan-core/git+file:/foo'). If those
then actually exist, this can have weird behavior. We should in general
avoid changing directories for everything except for subprocess.run.

pkgs/clan-cli/clan_cli/cli.py

@@ -2,7 +2,6 @@ import argparse
 import contextlib
 import logging
 import sys
-from pathlib import Path
 from types import ModuleType
 
 from clan_lib.custom_logger import setup_logging
@@ -37,13 +36,6 @@ with contextlib.suppress(ImportError):
     import argcomplete  # type: ignore[no-redef]
 
 
-def flake_path(arg: str) -> str:
-    flake_dir = Path(arg).resolve()
-    if flake_dir.exists() and flake_dir.is_dir():
-        return str(flake_dir)
-    return arg
-
-
 def default_flake() -> str | None:
     val = get_clan_flake_toplevel_or_env()
     if val:
@@ -98,7 +90,6 @@ def add_common_flags(parser: argparse.ArgumentParser) -> None:
             help="path to the flake where the clan resides in, can be a remote flake or local, can be set through the [CLAN_DIR] environment variable",
             default=default_flake(),
             metavar="PATH",
-            type=flake_path,
         )