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and AUR helpers do not reuse an outdated bearhub-0.10.7.tar.gz from cache.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/mirrors.py

@@ -1,42 +0,0 @@
-import logging
-import os
-import time
-import traceback
-from datetime import datetime
-from logging import Logger
-from pathlib import Path
-
-from bauh.api.paths import CACHE_DIR
-
-SYNC_FILE = f'{CACHE_DIR}/arch/mirrors_sync'
-
-
-def should_sync(logger: logging.Logger):
-    if os.path.exists(SYNC_FILE):
-        with open(SYNC_FILE) as f:
-            sync_file = f.read()
-
-        try:
-            sync_time = datetime.fromtimestamp(int(sync_file))
-            now = datetime.now()
-
-            if now > sync_time and now.day != sync_time.day:
-                logger.info("Package databases synchronization out of date")
-            else:
-                msg = "Package databases already synchronized"
-                logger.info(msg)
-                return False
-        except Exception:
-            logger.warning("Could not convert the database synchronization time from '{}".format(SYNC_FILE))
-            traceback.print_exc()
-    return True
-
-
-def register_sync(logger: Logger):
-    try:
-        Path('/'.join(SYNC_FILE.split('/')[0:-1])).mkdir(parents=True, exist_ok=True)
-        with open(SYNC_FILE, 'w+') as f:
-            f.write(str(int(time.time())))
-    except Exception:
-        logger.error("Could not write to mirrors sync file '{}'".format(SYNC_FILE))
-        traceback.print_exc()