build(deps): bump tensorflow in /core/iwasm/libraries/wasi-nn/test (#3675)

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.11.1 to 2.12.1.
- [Release notes](https://github.com/tensorflow/tensorflow/releases)
- [Changelog](https://github.com/tensorflow/tensorflow/blob/master/RELEASE.md)
- [Commits](tensorflow/tensorflow@v2.11.1...v2.12.1)

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

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core/iwasm/libraries/wasi-nn/test/requirements.txt

@@ -1,2 +1,2 @@
-tensorflow==2.11.1
+tensorflow==2.12.1
 numpy==1.26.4