Setup weekly project status emails

[dibyom]

As part of the changes to the Tekton WG meeting format, we decided to shift to sending project status updates via email vs in person at a meeting. See https://groups.google.com/g/tekton-dev/c/5kSTFAG9zEQ/m/SMMNmEsLCAAJ

From Dec 1 WG discussion, one idea that was proposed was to create a new GitHub discussion each week with the updates.

[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.

[vdemeester]

/lifecycle frozen