Migrate TensorBoard builds to Bzlmod on Bazel 7.7.0 - #7145

Migrate TensorBoard builds to Bzlmod on Bazel 7.7.0#7145

psamanoelton wants to merge 4 commits into

tensorflow:mastertensorflow/tensorboard:masterfrom

psamanoelton:workspace_upgradepsamanoelton/tensorboard:workspace_upgradeCopy head branch name to clipboard