Add DinoV2 and update Keras hub version

[sachinprasadhs]

• Update Keras Hub version
• Pin Tensorflow and TF-Keras version to avoid circular imports till we have matching TF-Keras version with TF.
• Updated DinoV2 API doc.

[gemini-code-assist]

Summary of Changes

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This pull request integrates the DINOv2 model components into the Keras Hub framework and updates the Keras Hub version dependency. The changes ensure that the latest DINOv2 models are available and properly documented within the Keras Hub, while also aligning with the most recent Keras Hub library version.

Highlights

• Keras Hub Version Update: The keras_hub dependency in scripts/autogen.py has been updated from v0.21.1 to v0.22.1, ensuring compatibility with the latest Keras Hub features and models.
• DINOv2 Model Integration: New entries for DINOv2 models, specifically DINOV2ImageConverter and DINOV2Backbone, have been added to scripts/hub_master.py. This integration enables their generation and documentation within the Keras Hub ecosystem, making them accessible for use.

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[gemini-code-assist]

Code Review

This pull request adds support for the DINOv2 model and updates the keras_hub package version. The changes look good, primarily involving additions to configuration files. I have one minor suggestion to improve naming consistency for the new DINOv2 model entry.