Fix aptly-test-manual values

The aptly-test-manual PVC was resized to 700GB, but this change has not been updated in the values.yaml file.

It is necessary to specify the test Docker repository because that is where the test images are located. Failure to do so will result in the system defaulting to searching for images in the main repository, which may lead to incorrect testing outcomes.

Memory requests have been reduced to facilitate finding a node to run the instance.

Signed-off-by: Pablo Vigo pvigo@collabora.com