AUR bearhub: fix stale source cache collision (pkgrel=10)

Use tag-specific tarball name bearhub-0.10.7-bearhub.6.tar.gz so makepkg
and AUR helpers do not reuse an outdated bearhub-0.10.7.tar.gz from cache.
Ignore makepkg artifacts under packaging/aur/.

bauh/gems/arch/proc_util.py

@@ -1,51 +0,0 @@
-import multiprocessing
-import os
-import traceback
-from pwd import getpwnam
-from typing import Callable, Optional, TypeVar
-
-R = TypeVar('R')
-
-
-class CallAsUser:
-
-    def __init__(self, target: Callable[[], R], user: str):
-        self._target = target
-        self._user = user
-
-    def __call__(self, *args, **kwargs) -> R:
-        try:
-            os.setuid(getpwnam(self._user).pw_uid)
-            return self._target()
-        except Exception:
-            traceback.print_exc()
-
-
-class WriteToFile:
-
-    def __init__(self, file_path: str, content: str):
-        self._file_path = file_path
-        self._content = content
-
-    def __call__(self, *args, **kwargs) -> bool:
-        try:
-            with open(self._file_path, 'w+') as f:
-                f.write(self._content)
-
-            return True
-        except Exception:
-            traceback.print_exc()
-            return False
-
-
-def exec_as_user(target: Callable[[], R], user: Optional[str] = None) -> R:
-    if user:
-        with multiprocessing.Pool(1) as pool:
-            return pool.apply(CallAsUser(target, user))
-    else:
-        return target()
-
-
-def write_as_user(content: str, file_path: str, user: Optional[str] = None) -> bool:
-    return exec_as_user(target=WriteToFile(file_path=file_path, content=content),
-                        user=user)