chore(docs): Clarify debug meta image_size attribute (#12584)

Author: markushi

develop-docs/sdk/data-model/event-payloads/debugmeta.mdx

@@ -59,7 +59,7 @@ prefixed with `"0x"`.
 `image_size`
 
 : The size of the image in virtual memory. If missing, Sentry will assume that
-the image spans up to the next image, which might lead to invalid stack traces.
+the image spans up to the image with the next highest address, which might lead to invalid stack traces.
 
 `debug_id`