docs(readme): correct compat table

Signed-off-by: Frazer Smith <[email protected]>

Author: Fdawgs

Readme.md

@@ -21,7 +21,7 @@ npm i @fastify/bearer-auth
 | `^10.x`        | `^5.x`          |
 | `^8.x`         | `^4.x`          |
 | `^5.x`         | `^3.x`          |
-| `^5.x`         | `^2.x`          |
+| `^4.x`         | `^2.x`          |
 | `^1.x`         | `^1.x`          |