fix: Traffic-Sign-Detection/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-NETWORKX-1062709
- https://snyk.io/vuln/SNYK-PYTHON-URLLIB3-1085966
- https://snyk.io/vuln/SNYK-PYTHON-URLLIB3-1533435

Author: snyk-bot

Traffic-Sign-Detection/requirements.txt

@@ -55,7 +55,7 @@ nbclient==0.5.1
 nbconvert==6.5.1
 nbformat==5.1.2
 nest-asyncio==1.4.3
-networkx==2.5
+networkx==2.6
 notebook==6.4.12
 numba==0.52.0
 numpy==1.22.0
@@ -116,7 +116,7 @@ tornado==6.1
 tqdm==4.56.0
 traitlets==5.0.5
 typing-extensions==3.7.4.3
-urllib3==1.26.2
+urllib3==1.26.5
 wcwidth==0.2.5
 webencodings==0.5.1
 Werkzeug==1.0.1