fix(logger): set utf-8 encoding

Author: CorieW

src/firebase_functions/logger.py

@@ -8,6 +8,11 @@
 import typing as _typing
 import typing_extensions as _typing_extensions
 
+# If encoding is not 'utf-8', change it to 'utf-8'.
+if _sys.stdout.encoding != "utf-8":
+    _sys.stdout.reconfigure(encoding="utf-8") # type: ignore
+if _sys.stderr.encoding != "utf-8":
+    _sys.stderr.reconfigure(encoding="utf-8") # type: ignore
 
 class LogSeverity(str, _enum.Enum):
     """