RHOAIENG-15743: fix(odh-nbc): trim ca-bundle certData to avoid logging scary messages

[jiridanek]

https://issues.redhat.com/browse/RHOAIENG-15743

Description

After opendatahub-io/opendatahub-operator#1339, operator is adding '\n' unconditionally to the odh cert bundle, and that is breaking our == "" checks. Trim the certData and restore balance in the universe.

See the equivalent fix in pipelines

• Trimmed certificates before checking them data-science-pipelines-operator#742

How Has This Been Tested?

• quay.io/opendatahub/odh-notebook-controller:pr-455

Put image into odh-notebook-controller deployment and see how

{"level":"info","ts":"2024-11-15T19:10:16Z","logger":"controllers.Notebook","msg":"Invalid certificate format","notebook":"elyra","namespace":"jdanek2","configMap":"odh-trusted-ca-bundle","certFile":"odh-ca-bundle.crt"}

disappears when thecustomCABundle in DSCi is ''.

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[jstourac]

/lgtm

[jiridanek]

I'll prepare this for eventual merging to rhds/master; looks like there is still time to get this to 2.16 and the log message is really annoying.

[jiridanek]

/approve

[openshift-ci]

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