dockerfile: update gotestsum to 1.12.0

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

Dockerfile

@@ -6,7 +6,7 @@ ARG XX_VERSION=1.5.0
 # for testing
 ARG DOCKER_VERSION=27.3.1
 ARG DOCKER_CLI_VERSION=${DOCKER_VERSION}
-ARG GOTESTSUM_VERSION=v1.9.0
+ARG GOTESTSUM_VERSION=v1.12.0
 ARG REGISTRY_VERSION=2.8.3
 ARG BUILDKIT_VERSION=v0.17.0
 ARG UNDOCK_VERSION=0.8.0