Correct typo in module docs (#39337)

Author: baggepinnen

doc/src/manual/modules.md

@@ -415,7 +415,7 @@ into account the set of dependencies already loaded into the current process and
 modules, even if their files change or disappear, in order to avoid creating incompatibilities between
 the running system and the precompile cache.
 
-If you know that a module is *not* safe to precompile your module
+If you know that a module is *not* safe to precompile
 (for example, for one of the reasons described below), you should
 put `__precompile__(false)` in the module file (typically placed at the top).
 This will cause `Base.compilecache` to throw an error, and will cause `using` / `import` to load it