landlock: Fix grammar error

Fix grammar error in comments that were identified using the codespell
tool.

Signed-off-by: Tanya Agarwal <tanyaagarwal25699@gmail.com>
Reviewed-by: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20250123194208.2660-1-tanyaagarwal25699@gmail.com
[mic: Simplify commit message]
Signed-off-by: Mickaël Salaün <mic@digikod.net>

Author: TanyaAgarwal25

security/landlock/ruleset.c

@@ -124,7 +124,7 @@ create_rule(const struct landlock_id id,
 		return ERR_PTR(-ENOMEM);
 	RB_CLEAR_NODE(&new_rule->node);
 	if (is_object_pointer(id.type)) {
-		/* This should be catched by insert_rule(). */
+		/* This should have been caught by insert_rule(). */
 		WARN_ON_ONCE(!id.key.object);
 		landlock_get_object(id.key.object);
 	}