infra: upgrade Bazel to 3.7.0 (3 of 4) (#4369)
infra: upgrade Bazel to 3.7.0 (3 of 4) (#4369)

This change re-enables building of sources under //tensorboard/web in
CI.

tensorflow/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard