Update images to ubi9/ubi9-minimal (#90)

Author: sebrandon1

Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.access.redhat.com/ubi8/ubi:8.9-1107.1705420509 AS builder
+FROM registry.access.redhat.com/ubi9/ubi:9.3-1476 AS builder
 ARG OCT_REPO=github.com/test-network-function/oct.git
 ARG TOKEN
 ENV OCT_FOLDER=/usr/oct
@@ -39,7 +39,7 @@ RUN ./oct fetch --operator --container --helm && \
 
 # Copy the oct folder to a new minimal flattened image to reduce size.
 # It should also hide the pull token.
-FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
+FROM registry.access.redhat.com/ubi9/ubi-minimal:latest
 ENV OCT_FOLDER=/usr/oct
 
 COPY --from=builder ${OCT_FOLDER} ${OCT_FOLDER}

Dockerfile.local

@@ -1,4 +1,4 @@
-FROM registry.access.redhat.com/ubi8/ubi:8.9-1107.1705420509 AS builder
+FROM registry.access.redhat.com/ubi9/ubi:9.3-1476 AS builder
 ARG OCT_LOCAL_FOLDER
 
 ENV OCT_FOLDER=/usr/oct
@@ -42,7 +42,7 @@ RUN ./oct fetch --operator --container --helm && \
 
 # Copy the state into a new flattened image to reduce (layers) size.
 # It should also hide the pull token.
-FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
+FROM registry.access.redhat.com/ubi9/ubi-minimal:latest
 ENV OCT_FOLDER=/usr/oct
 
 COPY --from=builder ${OCT_FOLDER} ${OCT_FOLDER}