deps(app): update dependency yfinance to v0.2.50 (#396)

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

app/requirements.txt

@@ -5,6 +5,6 @@ confuse == 2.0.1
 logfmt_logger == 0.1.2
 prometheus_client ==0.21.0
 urllib3 ==2.2.3
-yfinance ==0.2.49
+yfinance ==0.2.50
 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