Bump opencv-python-headless

Bumps [opencv-python-headless](https://github.com/opencv/opencv-python) from 4.5.5.64 to 4.8.1.78.
- [Release notes](https://github.com/opencv/opencv-python/releases)
- [Commits](https://github.com/opencv/opencv-python/commits)

---
updated-dependencies:
- dependency-name: opencv-python-headless
  dependency-version: 4.8.1.78
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Algorithms and Deep Learning Models/Deep Learning-Driven Breast Cancer Diagnosis/requirements.txt

@@ -1,4 +1,4 @@
 Flask==2.0.3
 tensorflow==2.12.1
-opencv-python-headless==4.5.5.64
+opencv-python-headless==4.8.1.78
 numpy==1.21.5