Update the digest updater workflow to incorporate the new release 2023b

[atheo89]

Part of work of the opendatahub-io/notebooks#237

Important notes before merging this change:

• Need to create the new branch for the release-2023b on the notebooks repo
• We need to update the params.env file by switching the releases. N has to become N-1(2023a) and the N to be the new release (2023b)

---

• The commits are squashed in a cohesive manner and have meaningful messages.
• For commits that came from upstream, [UPSTREAM] has been prepended to the commit message
• JIRA link(s):
• The Jira story is acked
• An entry has been added to the latest build document in Build Announcements Folder.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious)

[harshad16]

/hold

From 1.35 RHODS onwards, the manifests might be taken from in-repo of component.
opendatahub-io/opendatahub-operator#579

[atheo89]

In order to be merged this PR should first merged this -> #513

[harshad16]

Closing this in favor of: #521