Add must-gather collection script for DSP

[DharmitD]

Description

Adding a must-gather collection script for Data Science Pipelines Application instances.

How Has This Been Tested?

• Retrieved this image from the CI build for this PR: quay.io/opendatahub/must-gather:pr-798
• Used this image to run must-gather on a cluster with DSP Operator and Application installed:
  oc adm must-gather --image=quay.io/opendatahub/must-gather:pr-798

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

[VaishnaviHire]

/retest

[DharmitD]

/test odh-manifests-e2e

[DharmitD]

/test odh-manifests-e2e

[DharmitD]

/test odh-manifests-e2e

[VaishnaviHire]

@DharmitD PR needs a rebase

[DharmitD]

/test 411-odh-manifests-e2e

[HumairAK]

/lgtm

[VaishnaviHire]

/lgtm

[DharmitD]

/retest

[DharmitD]

/retest

[DharmitD]

/retest-required

[DharmitD]

/retest

[DharmitD]

/retest

[VaishnaviHire]

/test all

[DharmitD]

/test all

[DharmitD]

/test odh-manifests-e2e

[HumairAK]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: HumairAK, VaishnaviHire

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [VaishnaviHire]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[DharmitD]

/test odh-manifests-e2e

[DharmitD]

/test odh-manifests-e2e

[DharmitD]

/test odh-manifests-e2e

[DharmitD]

/test odh-manifests-e2e

[openshift-ci]

@DharmitD: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/odh-manifests-e2e	3249cd5	link	true	/test odh-manifests-e2e

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[LaVLaS]

I am manually merging this since this change does not affect the ODH deployment and the CI test failure is affecting all PRs