[master] 3da45eb1e flexlint: Constify

[Walid Boudebouda]

commit 3da45eb1e03166f7ffad250913d0fbad1cc58bd9
Author: Walid Boudebouda <walid.boudebouda at gmail.com>
Date:   Mon Sep 1 11:14:31 2025 +0200

    flexlint: Constify

diff --git a/bin/varnishd/cache/cache_hash.c b/bin/varnishd/cache/cache_hash.c
index fde0c87d2..a72abd8cc 100644
--- a/bin/varnishd/cache/cache_hash.c
+++ b/bin/varnishd/cache/cache_hash.c
@@ -398,7 +398,7 @@ hsh_vry_match(const struct req *req, struct objcore *oc, const uint8_t *vary)
 }
 
 static unsigned
-hsh_rush_match(struct req *req)
+hsh_rush_match(const struct req *req)
 {
 	struct objhead *oh;
 	struct objcore *oc;