fix: Zoom-Auto-Attend/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-PYGMENTS-5750273

Author: snyk-bot

Diff for: Zoom-Auto-Attend/requirements.txt

@@ -10,7 +10,7 @@ prompt-toolkit==1.0.14
 PyAutoGUI==0.9.50
 pyfiglet==0.8.post1
 PyGetWindow==0.0.8
-Pygments==2.7.4
+Pygments==2.15.0
 PyMsgBox==1.0.8
 pyperclip==1.8.0
 PyRect==0.1.4