remove TektonHub component support

[ngelman1]

Changes

Resolves SRVKP 11797
Remove all TektonHub CRD, controller, and related code from the operator due to Hub deprication.

code removed:

• TektonHub CRD definition and generated CRD manifests
• TektonHub API types, defaults, validation, and lifecycle
• Kubernetes and OpenShift TektonHub reconcilers/controllers
• Hub-related entries from TektonConfig spec and validation
• Generated client code (clientset, informers, listers, injection)
• OLM bundle/CSV references (owned CRDs, container images, env vars)
• Helm chart CRD templates and controller args
• • Hub image entries from operatorhub/openshift/config.yaml
• Documentation (TektonHub.md, air-gap image table rows, TektonConfig hub params)
• E2E tests, test helpers, and test data for TektonHub
• fetch-releases.sh hub release fetching logic
• Static kodata (PostgreSQL ConfigMap)

(made sure build lint and test passed before submitting)

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Release Notes

NONE

[jkhelil]

@pratap0007 Please review

[ngelman1]

I hope I didnt miss any place. if there are additional tests I need to run to make sure nothing breaks let me know. I only ran locally what runs in the CI

[vdemeester]

/meow

[tekton-robot]

@vdemeester:

Details

In response to this:

/meow

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ngelman1]

tested upgrading patht and got:
admission webhook \"[webhook.operator.tekton.dev](http://webhook.operator.tekton.dev/)\" denied the request: mutation failed: cannot decode incoming old object: json: unknown field \"hub\""
at first.
Now added back the type and removeHubFromTektonConfig to pre-upgrade. loogs looks good now when upgrading. will be safe to completely remove next release.
{"level":"info","msg":"Reconcile succeeded","knative.dev/controller":"...tektonconfig.Reconciler","knative.dev/key":"config","duration":1.064538652}

[pratap0007]

can we revert this file changes?

[pratap0007]

Thanks @ngelman1 for the PR and it looks good to me. I have just a few suggestions, please review them and address them if needed.

[pratap0007]

/lgtm

[tekton-robot]

New changes are detected. LGTM label has been removed.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 25.51%. Comparing base (477bca6) to head (1974c55).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3494      +/-   ##
==========================================
+ Coverage   24.48%   25.51%   +1.03%     
==========================================
  Files         470      448      -22     
  Lines       24924    23309    -1615     
==========================================
- Hits         6102     5948     -154     
+ Misses      18126    16675    -1451     
+ Partials      696      686      -10     

Flag	Coverage Δ
unit-tests	25.51% <ø> (+1.03%)	⬆️

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[anithapriyanatarajan]

/approve

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: anithapriyanatarajan

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Details

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• OWNERS [anithapriyanatarajan]

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[jkhelil]

@ngelman1 can you rebase , and we can merge