Bump tensorflow in /Detection Models/Brain Tumor Detection

Bumps [tensorflow](https://github.com/tensorflow/tensorflow) from 2.11.0 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@v2.11.0...v2.12.1)

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

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

Author: dependabot[bot]

Detection Models/Brain Tumor Detection/Web App/requirements.txt

@@ -2,5 +2,5 @@ Flask==2.3.2
 Markdown==3.4.3
 numpy==1.23.5
 Pillow==9.5.0
-tensorflow==2.12.0
+tensorflow==2.12.1
 tensorflow_intel==2.12.0

Detection Models/Brain Tumor Detection/requirements.txt

@@ -3,5 +3,5 @@ pandas==1.5.3
 seaborn==0.12.2
 matplotlib==3.6.3
 scikit-learn==1.2.1
-tensorflow==2.11.0
+tensorflow==2.12.1
 keras==2.13.1