Allow TLS connections between EventListener and Interceptors

[dibyom]

Feature request

EventListeners today communicate with Interceptors over HTTP. We should optionally allow TLS connections as well.
We will likely want to do this for the new pluggable interceptors API and not the old style webhook interceptors.

Use case

• Using Triggers in an environment that mandates E2E TLS.

[tekton-robot]

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[dibyom]

/remove-lifecycle stale

[tekton-robot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale with a justification.
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[tekton-robot]

Stale issues rot after 30d of inactivity.
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[tekton-robot]

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[tekton-robot]

@tekton-robot: Closing this issue.

In response to this:

Rotten issues close after 30d of inactivity.
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[tekton-robot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale with a justification.
Stale issues rot after an additional 30d of inactivity and eventually close.
If this issue is safe to close now please do so with /close with a justification.
If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle stale

Send feedback to tektoncd/plumbing.

[tekton-robot]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten with a justification.
Rotten issues close after an additional 30d of inactivity.
If this issue is safe to close now please do so with /close with a justification.
If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle rotten

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[khrm]

/remove-lifecycle rotten
Feature will be implemented soon.
@savitaashture