Bump Bazel version to 3.4.1
Bump Bazel version to 3.4.1

Change-Id: I285d4b25f3c5fc7bc3d748c843e70b2f488f48e6

GerritCodeReview/plugins_serviceuser,GerritCodeReview/plugins_serviceuser,GerritCodeReview/plugins_serviceuser,GerritCodeReview/plugins_serviceuser,GerritCodeReview/plugins_serviceuser