Point Gitlab Interceptors docs to more direct Webhook event types link

[AndrewTasso]

Changes

Revise docs to point to Gitlab Docs that contain the full list of Webhook event types, instead of a generic description of Webhook events.

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• Has Docs if any changes are user facing, including updates to minimum requirements e.g. Kubernetes version bumps
• Has Tests included if any functionality added or changed
• Follows the commit message standard
• Meets the Tekton contributor standards (including functionality, content, code)
• Has a kind label. You can add one by adding a comment on this PR that contains /kind <type>. Valid types are bug, cleanup, design, documentation, feature, flake, misc, question, tep
• Release notes block below has been updated with any user facing changes (API changes, bug fixes, changes requiring upgrade notices or deprecation warnings). See some examples of good release notes.
• Release notes contains the string "action required" if the change requires additional action from users switching to the new release

Release Notes

NONE

[linux-foundation-easycla]

• ✅login: AndrewTasso / (07655b0)

The committers listed above are authorized under a signed CLA.

[tekton-robot]

Hi @AndrewTasso. Thanks for your PR.

I'm waiting for a tektoncd member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[AndrewTasso]

/kind documentation

[khrm]

/ok-to-test

[khrm]

/lgtm

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: savitaashture

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[savitaashture]

/retest

[khrm]

/test pull-tekton-triggers-integration-tests

[AndrewTasso]

@khrm I'm a bit fuzzy on how a single line documentation change is causing a failed build. What's the next steps to fry this merged?

[savitaashture]

/test tekton-triggers-unit-tests

[khrm]

This failure was due to some issue with plumbing.