CI: update slirp4netns to 1.3.2

Signed-off-by: Akihiro Suda <[email protected]>

Author: AkihiroSuda

Dockerfile

@@ -1,7 +1,7 @@
 ARG GO_VERSION=1.24
 ARG UBUNTU_VERSION=24.04
 ARG SHADOW_VERSION=4.16.0
-ARG SLIRP4NETNS_VERSION=v1.3.1
+ARG SLIRP4NETNS_VERSION=v1.3.2
 ARG VPNKIT_VERSION=0.5.0
 ARG PASST_VERSION=2024_12_11.09478d5
 ARG DOCKER_VERSION=28.0.1