Update registry.access.redhat.com/ubi9-minimal Docker digest to 21ed5a0

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

.konflux/shared-resource-webhook/Dockerfile

@@ -8,7 +8,7 @@ RUN rm -f /vendor/k8s.io/apimachinery/pkg/util/managedfields/pod.yaml
 
 RUN CGO_ENABLED=1 GO111MODULE=on go build -a -mod=vendor -buildvcs=false -ldflags="-s -w" -tags="strictfipsruntime" -o openshift-builds-shared-resource-webhook ./cmd/webhook
 
-FROM registry.access.redhat.com/ubi9-minimal@sha256:ac61c96b93894b9169221e87718733354dd3765dd4a62b275893c7ff0d876869
+FROM registry.access.redhat.com/ubi9-minimal@sha256:21ed5a01130d3a77eb4a26a80de70a4433860255b394e95dc2c26817de1da061
 
 COPY --from=builder /opt/app-root/src/openshift-builds-shared-resource-webhook .
 COPY LICENSE /licenses/