Bump version to 2.3.0b5

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: michaelchu

optopsy/data/_yf_helpers.py

@@ -37,7 +37,7 @@ def _yf_fetch_and_cache(
     ``ValueError``) are **not** caught here — callers are responsible for
     handling them.
     """
-    import yfinance as yf  # type: ignore[unresolved-import]
+    import yfinance as yf
 
     if cached is None or cached.empty:
         _log.info("Cold cache for %s, fetching full history from yfinance", symbol)

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "optopsy"
-version = "2.3.0b4"
+version = "2.3.0b5"
 description = "A nimble backtesting and statistics library for options strategies"
 readme = "README.md"
 license = "AGPL-3.0-or-later"