Bump python precommit timeout to 3hrs
Bump python precommit timeout to 3hrs

Follow up to https://github.com/apache/beam/pull/10121

Regular version of the precommits are timing out. Not the pytest versions. Apply the same timeout to both places.
robertwb/incubator-beam,RyanSkraba/beam,apache/beam,apache/beam,apache/beam,apache/beam,robertwb/incubator-beam,chamikaramj/beam,chamikaramj/beam,chamikaramj/beam,iemejia/incubator-beam,lukecwik/incubator-beam,RyanSkraba/beam,robertwb/incubator-beam,lukecwik/incubator-beam,RyanSkraba/beam,lukecwik/incubator-beam,chamikaramj/beam,robertwb/incubator-beam,chamikaramj/beam,robertwb/incubator-beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,RyanSkraba/beam,chamikaramj/beam,robertwb/incubator-beam,robertwb/incubator-beam,iemejia/incubator-beam,robertwb/incubator-beam,lukecwik/incubator-beam,lukecwik/incubator-beam,apache/beam,apache/beam,chamikaramj/beam,lukecwik/incubator-beam,RyanSkraba/beam,robertwb/incubator-beam,apache/beam,apache/beam,RyanSkraba/beam,chamikaramj/beam,lukecwik/incubator-beam,robertwb/incubator-beam,RyanSkraba/beam,apache/beam,apache/beam,apache/beam