Bubble up KCertificate Status Message when its not ready

[xtreme-vikram-yadav]

Fixes #14250

Proposed Changes

• KCert Status Message gets bubbled up to its parent Route when it's not ready

Reproduction Steps

• Given a cluster with Knative serving and autoTLS enabled
• And the domain is configured so that the generated URL contains more than 64 Bytes (Command: kubectl edit configmap config-domain -n knative-serving)
• When a Knative service is created
• Then I should see the Certificate generation error in the status of the Knative Service and Route.

OR

Run this script against a local kind cluster.
Note: Update KO_DOCKER_REPO before running the above script.

Release Note

* Certificate generation errors are bubbled up to its parent Route.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.14% ⚠️

Comparison is base (f9d9b28) 86.25% compared to head (a7fcdc2) 86.12%.
Report is 114 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14257      +/-   ##
==========================================
- Coverage   86.25%   86.12%   -0.14%     
==========================================
  Files         199      196       -3     
  Lines       14811    14792      -19     
==========================================
- Hits        12775    12739      -36     
- Misses       1734     1746      +12     
- Partials      302      307       +5     

Files Changed	Coverage Δ
pkg/apis/serving/v1/route_lifecycle.go	100.00% <100.00%> (ø)
pkg/reconciler/route/route.go	79.70% <100.00%> (ø)

... and 14 files with indirect coverage changes

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[nak3]

one nit otherwise LGTM.

[nak3]

/lgtm

[knative-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: xtreme-vikram-yadav
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[dprotaso]

Closing as Vikram is on a pretty long vacation