Fix mypy check by make _load_runtime_context failfast

Author: WqyJh

opentelemetry-api/src/opentelemetry/context/__init__.py

@@ -42,19 +42,14 @@ def _load_runtime_context() -> typing.Optional[_RuntimeContext]:
         OTEL_PYTHON_CONTEXT, default_context
     )  # type: str
 
-    try:
-        return next(  # type: ignore
-            iter(  # type: ignore
-                entry_points(  # type: ignore
-                    group="opentelemetry_context",
-                    name=configured_context,
-                )
+    return next(  # type: ignore
+        iter(  # type: ignore
+            entry_points(  # type: ignore
+                group="opentelemetry_context",
+                name=configured_context,
             )
-        ).load()()
-    except Exception:  # pylint: disable=broad-except
-        logger.exception(
-            "Failed to load context: %s", configured_context
         )
+    ).load()()
 
 _RUNTIME_CONTEXT = _load_runtime_context()