sqlite: use executemany

avoid loop inserting the whole list in a single query

proxywatchd.py

@@ -172,8 +172,8 @@ class Proxywatchd():
 
 	def submit_collected(self):
 		query = 'UPDATE proxylist SET failed=?,tested=?,dronebl=?,country=?,proto=?,duration=? WHERE proxy=?'
-		for job in self.collected:
-			self.mysqlite.execute(query, (job.failcount, job.nextcheck, 1, "unknown", job.proto, job.duration, job.proxy))
+		args = [ (job.failcount, job.nextcheck, 1, 'unknown', job.proto, job.duration, job.proxy) for job in self.collected ]
+		self.mysqlite.executemany(query, args)
 		self.mysqlite.commit()
 		self.collected = []