Update Fuzzer references (#11062)

Summary:
PR #9651 moved the location of some of the Fuzzer references. This PR adjusts sources to changes.

Pull Request resolved: #11062

Reviewed By: kagamiori

Differential Revision: D64549247

Pulled By: kgpai

fbshipit-source-id: ec0b48b7140e8d148f8f808c04d597d3b962f7eb

velox/docs/develop/testing/fuzzer.rst

@@ -169,9 +169,9 @@ To integrate with the Expression Fuzzer, create a test, register all scalar
 functions supported by the engine, and call ``FuzzerRunner::run()`` defined in
 `FuzzerRunner.h`_. See `ExpressionFuzzerTest.cpp`_.
 
-.. _FuzzerRunner.h: https://github.com/facebookincubator/velox/blob/main/velox/expression/tests/ExpressionFuzzer.h
+.. _FuzzerRunner.h: https://github.com/facebookincubator/velox/blob/main/velox/expression/fuzzer/ExpressionFuzzer.h
 
-.. _ExpressionFuzzerTest.cpp: https://github.com/facebookincubator/velox/blob/main/velox/expression/tests/ExpressionFuzzerTest.cpp
+.. _ExpressionFuzzerTest.cpp: https://github.com/facebookincubator/velox/blob/main/velox/expression/fuzzer/ExpressionFuzzerTest.cpp
 
 Functions with known bugs can be excluded from testing using a skip-list.