CI: Update to actions/checkout@v4

No functional change, but we should keep this current.

see 5f4ddb54b05ae0355b1f64c22263a6bc381410df

(cherry picked from commit 5c923f1869881156bf3a25c9659655ae10f7dbd0)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 425ed65fe131015ee62f4859cadf93529d5aa609)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 7d4259e60aca30160c81dfe337d540d655f9b298)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 59580117cd3ec24818b8608c4fc07b2c91053976)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/.github/workflows/cross-zoo.yml b/.github/workflows/cross-zoo.yml
index f2c8d7a..d9864e2 100644
--- a/.github/workflows/cross-zoo.yml
+++ b/.github/workflows/cross-zoo.yml
@@ -97,7 +97,7 @@
         sudo apt-get -yq --force-yes install \
             gcc-${{ matrix.platform.arch }} \
             ${{ matrix.platform.libs }}
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
 
     - name: install quictls