Changing the IMAGE_PREFIX variable breaks secret_detection_validation

[pporter-ctic]

The secret_detection_validation job in a pipeline which extends:

include:
    remote: https://raw.githubusercontent.com/chesapeaketechnology/gitlab-templates/release/3.x.x/lib/gitlab/ci/templates/pipeline/GradleJavaPipeline.yml

Has produced the following output: (censored path value for IMAGE_PREFIX)

Using Docker executor with image <IMAGE_PREFIX>/python:3.11-rc-alpine ...
Authenticating with credentials from $DOCKER_AUTH_CONFIG
Pulling docker image <IMAGE_PREFIX>/python:3.11-rc-alpine ...
WARNING: Failed to pull image with policy "always": Error response from daemon: unknown: repository awv/python not found (manager.go:251:0s)
ERROR: Job failed: failed to pull image "<IMAGE_PREFIX>/python:3.11-rc-alpine" with specified policies [always]: Error response from daemon: unknown: repository awv/python not found (manager.go:251:0s)

It seems to be related to this line:

gitlab-templates/lib/gitlab/ci/templates/jobs/gradle/SecretDetection.yml

Line 24 in bb79706

image: "${IMAGE_PREFIX}python:3.11-rc-alpine"