Try to fix/workaround CI failure

fawltydeps/packages.py

@@ -347,7 +347,7 @@ def debug_print(msg: str) -> None:
             if found:
                 return
 
-        elif bin_python.is_file():  # Assume POSIX
+        elif bin_python.is_file() or bin_python.is_symlink():  # Assume POSIX
             debug_print("    - on posix, found bin/python")
             if bin_python.is_symlink() and hasattr(bin_python, "readlink"):
                 debug_print(f"      and points to {bin_python.readlink()!r}")

fawltydeps/types.py

@@ -154,6 +154,8 @@ def __post_init__(self) -> None:
         super().__post_init__()
         assert self.path.is_dir()  # noqa: S101, sanity check
 
+        bin_python = self.path.parent.parent.parent / "bin/python"
+
         # Support Windows projects
         if sys.platform.startswith("win"):
             if (
@@ -162,9 +164,8 @@ def __post_init__(self) -> None:
             ):
                 return  # also ok
         # Support vitualenvs, poetry2nix envs, system-wide installs, etc.
-        elif (
-            self.path.match("lib/python?.*/site-packages")
-            and (self.path.parent.parent.parent / "bin/python").is_file()
+        elif self.path.match("lib/python?.*/site-packages") and (
+            bin_python.is_file() or bin_python.is_symlink()
         ):
             return  # all ok