deps: update tensorboard requirement from >=2.10 to >=2.21.0

[dependabot]

Updates the requirements on tensorboard to permit the latest version.

Release notes

Sourced from tensorboard's releases.

TensorBoard 2.21.0

The 2.21 minor series tracks TensorFlow 2.21.

Features

• Time Series Dashboard Optimization: Improved usability for time-series tooltips by limiting them to a maximum of 5 items and setting the default sorting to "Nearest Pixel" (prioritizing values closest to the cursor) (#7046, #7051, #7133, #7135).

Bug Fixes

• Fix a Projector plugin vulnerability. (#7115)
• Dependency Compatibility: Fixed runtime crashes caused by the missing pkg_resources library in newer environments (migrated to standard importlib.metadata) (#7057).

Breaking Changes

• This version updates its runtime dependency requirements to align with the TensorFlow 2.21 dependency stack. In particular, protobuf now requires >=6.31.1, <8.0.0 and grpcio now requires >=1.74.0, <2.0.

Changelog

Sourced from tensorboard's changelog.

Release 2.21.0

The 2.21 minor series tracks TensorFlow 2.21.

Features

• Time Series Dashboard Optimization: Improved usability for time-series tooltips by limiting them to a maximum of 5 items and setting the default sorting to "Nearest Pixel" (prioritizing values closest to the cursor) (#7046, #7051).

Bug Fixes

• Fix a Projector plugin vulnerability. (#7115)
• Dependency Compatibility: Fixed runtime crashes caused by the missing pkg_resources library in newer environments (migrated to standard importlib.metadata) (#7057).

Breaking Changes

• This version updates its runtime dependency requirements to align with the TensorFlow 2.21 dependency stack. In particular, protobuf now requires >=6.31.1, <8.0.0 and grpcio now requires >=1.74.0, <2.0.

Release 2.20.0

The 2.20 minor series tracks TensorFlow 2.20.

Features

• Compatible with Python 3.13 (see next point)
• Added a dependency to Pillow (https://python-pillow.github.io/), to replace use of deprecated standard library imghdr (removed in Python 3.13) (#7009, thanks @​Zamanhuseyinli)
• Updated vendored version of bleach library to 6.2.0 and removed dependency on six library. (#7013)

Release 2.19.0

The 2.19 minor series tracks TensorFlow 2.19.

This release contains only internal cleanups, with no particular new features or bug fixes.

Release 2.18.0

The 2.18 minor series tracks TensorFlow 2.18.

Features

• Compatibility updates for changes in Numpy 2.0 (#6871)
• Relax protobuf restriction to work with versions < 5.0.0 (in addition to >= 5.0.0) (#6888)

Bug Fixes

• Fixes a floating menu disappearing immediately after right-clicking on the trigger point. (#6891)

Release 2.17.1

Bug Fixes

• Relax restriction on protobuf dependency (#6887)
• Update usage of numpy to reflect numpy 2.0 changes (#6871)
• Fix stacking of notification dot (#6875, thanks @​crisbeto)
• Fix setting dialog styling regression (#6885)

... (truncated)

Commits

• 7b57f56 TensorBoard 2.21.0 (#7130)
• d468e3c Release notes for TensorBoard 2.21.0 (#7129)
• bf23338 Pin TF for 2.21 branch (#7128)
• b6cfbbd Updates TF compat protos (#7136)
• 74644cd Tooltip settings input - default value to 5 (#7135)
• 8c85d72 New checkbox setting to allow short list in tooltip (#7133)
• 6feb9c9 Remove python_version & srcs_version from build files (#7122)
• 0675a15 Fix demo utils test + clean-ups after PR#7120 (#7121)
• 13ac06c Resolve Buildifier warnings in repo.blz (#7120)
• 8d04769 Adding load for pytest in compat build (#7118)
• Additional commits viewable in compare view