Use FORCE_HOST_GO=y when building Kubernetes

This is to bypass the automatic Go toolchain download which has been
added to Kubernetes 1.27 and has been backported to v1.26.3, v1.25.8
and v1.24.12.

Signed-off-by: Tom Wieczorek <twieczorek@mirantis.com>

embedded-bins/kubernetes/Dockerfile

@@ -31,6 +31,7 @@ RUN \
     export KUBE_CGO_OVERRIDES=$commands; \
   fi; \
   mkdir /out; \
+  export FORCE_HOST_GO=y; \
   export KUBE_GIT_VERSION="v$VERSION+k0s"; \
   for cmd in $commands; do \
     make GOFLAGS="${BUILD_GO_FLAGS} -tags=${BUILD_GO_TAGS}" GOLDFLAGS="${BUILD_GO_LDFLAGS_EXTRA}" WHAT=cmd/$cmd; \