Update registry.access.redhat.com/ubi9/go-toolset Docker digest to 8a9e146 (#396)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

confbatstest/Dockerfile_build

@@ -1,5 +1,5 @@
 # Konstraint Builder image
-FROM registry.access.redhat.com/ubi9/go-toolset@sha256:703937e152d049e62f5aa8ab274a4253468ab70f7b790d92714b37cf0a140555 AS konstraint
+FROM registry.access.redhat.com/ubi9/go-toolset@sha256:8a9e1465ae487fa2b4a94d2baa249a8d59fb3d7e6884a7b22c783f494f4cfb01 AS konstraint
 
 # renovate: datasource=github-releases depName=plexsystems/konstraint
 ARG KONSTRAINT_VERSION=v0.39.0