[Snyk] Security upgrade numpy from 1.21.3 to 1.22.2 (ultralytics#11928)

fix: requirements.txt to reduce vulnerabilities


The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-NUMPY-2321964
- https://snyk.io/vuln/SNYK-PYTHON-NUMPY-2321966
- https://snyk.io/vuln/SNYK-PYTHON-NUMPY-2321970

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

requirements.txt

@@ -4,7 +4,7 @@
 # Base ------------------------------------------------------------------------
 gitpython>=3.1.30
 matplotlib>=3.3
-numpy>=1.18.5
+numpy>=1.22.2
 opencv-python>=4.1.1
 Pillow>=7.1.2
 psutil  # system resources