fix(procs): replace md5 with sha256 for filter hash key

Author: markuslf

check-plugins/procs/procs

@@ -33,7 +33,7 @@ except ImportError:
 
 
 __author__ = 'Linuxfabrik GmbH, Zurich/Switzerland'
-__version__ = '2026040801'
+__version__ = '2026040802'
 
 DESCRIPTION = """Prints the number of currently running processes and warns on metrics like process
                  counts, process memory usage or CPU usage. You may filter the process list by
@@ -518,7 +518,7 @@ def main():
             args.USERNAME or '',
             args.STATUS or '',
         )
-        filter_hash = hashlib.md5(filter_key.encode()).hexdigest()
+        filter_hash = hashlib.sha256(filter_key.encode()).hexdigest()
 
         conn = lib.base.coe(lib.db_sqlite.connect(
             filename='linuxfabrik-monitoring-plugins-procs.db',