added sealight configuration

[pnaik1]

https://issues.redhat.com/browse/RHOAIENG-11838

Description

To test the sea-light poc on odh-nightly

1. added slnodejs devdependency
2. Added slignore.generated file : To ignore files from being scanned

How Has This Been Tested?

Test Impact

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Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit or cypress tests for related changes)

If you have UI changes:

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After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[manaswinidas]

/lgtm

Just a package change.

[lucferbux]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lucferbux, manaswinidas

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