Update tensorflow-datasets requirement from <4.5,>=4.2 to >=4.2,<4.8

Updates the requirements on [tensorflow-datasets](https://github.com/tensorflow/datasets) to permit the latest version.
- [Release notes](https://github.com/tensorflow/datasets/releases)
- [Changelog](https://github.com/tensorflow/datasets/blob/master/CHANGELOG.md)
- [Commits](tensorflow/datasets@v4.2.0...v4.7.0)

---
updated-dependencies:
- dependency-name: tensorflow-datasets
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

setup.py

@@ -19,7 +19,7 @@
 
 keras_deps = [
     'tensorflow>=2.10',
-    'tensorflow_datasets>=4.2,<4.5',
+    'tensorflow_datasets>=4.2,<4.8',
     'tensorflow-privacy>=0.5,<0.8',
 ]
 other_deps = [