NO-ISSUE: Pin brew.registry.redhat.io/rh-osbs/openshift-golang-builder Docker tag to 977bd04

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

Author: red-hat-konflux[bot]

Dockerfile.rhtap

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM brew.registry.redhat.io/rh-osbs/openshift-golang-builder:rhel_9_1.25 as builder
+FROM brew.registry.redhat.io/rh-osbs/openshift-golang-builder:rhel_9_1.25@sha256:977bd041377a1367c8b102a460ae8e63f89905f7cf9d8235484ae658c9b47646 as builder
 
 WORKDIR /workspace
 COPY . .