[py] do not set browser binary in selenium manager if it is an empty string (SeleniumHQ#12738)

Author: titusfortner

py/selenium/webdriver/common/selenium_manager.py

@@ -101,7 +101,7 @@ def driver_location(self, options: BaseOptions) -> str:
         driver_path = output["driver_path"]
         logger.debug("Using driver at: %s", driver_path)
 
-        if hasattr(options.__class__, "binary_location"):
+        if hasattr(options.__class__, "binary_location") and browser_path:
             options.binary_location = browser_path
             options.browser_version = None  # if we have the binary location we no longer need the version