fix: requirements.macos.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-TORNADO-10176059

Author: snyk-bot

requirements.macos.txt

@@ -50,7 +50,7 @@ six==1.10.0
 sqlparse==0.4.2
 supervisor==4.2.1
 thehive4py==1.8.1
-tornado==5.1
+tornado==6.5
 tzlocal==1.5.1
 uritemplate==3.0.0
 urllib3==1.26.5