MGMT-22131: transitioning red hat operator base image to ubi minimal (#802)

* update ubi9-minimal to use digest version and go version 1.25

* revert go version and update Dockerfile.rhtap

Author: shay23bra

Dockerfile

@@ -11,7 +11,7 @@ RUN CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 # Extract the commit reference from which the image is built
 RUN git rev-parse --short HEAD > /commit-reference.txt
 
-FROM registry.access.redhat.com/ubi9/ubi-minimal:9.6
+FROM registry.access.redhat.com/ubi9/ubi-minimal:latest@sha256:6fc28bcb6776e387d7a35a2056d9d2b985dc4e26031e98a2bd35a7137cd6fd71
 
 # Copy the commit reference from the builder
 COPY --from=builder /commit-reference.txt /commit-reference.txt

Dockerfile.rhtap

@@ -6,7 +6,7 @@ COPY . .
 # Build
 RUN CGO_ENABLED=1 go build -a -o manager main.go
 
-FROM registry.redhat.io/rhel9-6-els/rhel:9.6
+FROM registry.access.redhat.com/ubi9/ubi-minimal:latest@sha256:6fc28bcb6776e387d7a35a2056d9d2b985dc4e26031e98a2bd35a7137cd6fd71
 
 ARG version=2.11