Bump tensorflow in /docs/samples/v1beta1/triton/bert/bert_tokenizer_v2 (

kserve#2205)

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.5.3 to 2.7.2.
- [Release notes](https://github.com/tensorflow/tensorflow/releases)
- [Changelog](https://github.com/tensorflow/tensorflow/blob/master/RELEASE.md)
- [Commits](tensorflow/tensorflow@v2.5.3...v2.7.2)

---
updated-dependencies:
- dependency-name: tensorflow
  dependency-type: direct:production
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/samples/v1beta1/triton/bert/bert_tokenizer_v2/setup.py

@@ -15,7 +15,7 @@
     packages=find_packages("bert_transformer"),
     install_requires=[
         "kfserving>=0.4.0",
-        "tensorflow==2.5.3",
+        "tensorflow==2.7.2",
     ],
     tests_require=tests_require,
     extras_require={'test': tests_require}