Update folly Github hash (#13017)

Summary:
The internal codebase is updated for the coro directory's graduation from experimental. Updating our build script for a newer version with this change too. Using this hash: facebook/folly@03041f0

Pull Request resolved: facebook/rocksdb#13017

Reviewed By: nickbrekhus

Differential Revision: D62763932

Pulled By: jowlyzhang

fbshipit-source-id: 1b211707fbc7d974d6d6ceaf577e174424bb44ed

Makefile

@@ -2489,7 +2489,7 @@ checkout_folly:
 	fi
 	@# Pin to a particular version for public CI, so that PR authors don't
 	@# need to worry about folly breaking our integration. Update periodically
-	cd third-party/folly && git reset --hard c48fdd205c1c291651749d532b8055fe822bba25
+	cd third-party/folly && git reset --hard 03041f014b6e6ebb6119ffae8b7a37308f52e913
 	@# NOTE: this hack is required for clang in some cases
 	perl -pi -e 's/int rv = syscall/int rv = (int)syscall/' third-party/folly/folly/detail/Futex.cpp
 	@# NOTE: this hack is required for gcc in some cases