deps(app): update dependency urllib3 to v2.2.3 (#374)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

app/requirements.txt

@@ -4,7 +4,7 @@ PyYAML ==6.0.2
 confuse == 2.0.1
 logfmt_logger == 0.1.2
 prometheus_client ==0.20.0
-urllib3 ==2.2.2
+urllib3 ==2.2.3
 yfinance ==0.2.43
 numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
 setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability