Fix typo noted by @Stephan202.

#4550 (review)

PiperOrigin-RevId: 667632476

docs/bugpattern/WithSignatureDiscouraged.md

@@ -1,4 +1,4 @@
-`withSignature` replies on the string representation of internal classes in the
+`withSignature` relies on the string representation of internal classes in the
 javac implementation. Those string representations are not necessarily stable
 across versions of javac, and they can change when a method is annotated with
 type-use annotations.