[master] f6ce3c9c6 Constify

[Poul-Henning Kamp]

commit f6ce3c9c676ad94609508ff2801463635b2a8316
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Tue Jun 13 06:08:17 2023 +0000

    Constify

diff --git a/bin/varnishd/cache/cache_esi_deliver.c b/bin/varnishd/cache/cache_esi_deliver.c
index b543e2a62..59e304ee2 100644
--- a/bin/varnishd/cache/cache_esi_deliver.c
+++ b/bin/varnishd/cache/cache_esi_deliver.c
@@ -312,7 +312,7 @@ static int v_matchproto_(vdp_bytes_f)
 ved_vdp_esi_bytes(struct vdp_ctx *vdx, enum vdp_action act, void **priv,
     const void *ptr, ssize_t len)
 {
-	uint8_t *q, *r;
+	const uint8_t *q, *r;
 	ssize_t l = 0;
 	uint32_t icrc = 0;
 	uint8_t tailbuf[8 + 5];