chore: update bazel

Author: zaucy

.bazelversion

@@ -1,7 +1 @@
-5.3.1
-# The first line of this file is used by Bazelisk and Bazel to be sure
-# the right version of Bazel is used to build and test this repo.
-# This also defines which version is used on CI.
-#
-# Note that you should also run integration_tests against other Bazel
-# versions you support.
+6.1.0