[WIP] Make sure tracer is shut down across components

[mgencur]

Fixes #

This is to show the effect of https://github.com/knative/pkg/pull/2566.

Proposed Changes

• Setup Trace publishing and return the tracer which is later shutdown at the end of the process.

Pre-review Checklist

• [ ] At least 80% unit test coverage
• [ ] E2E tests for any new behavior
• [ ] Docs PR for any user-facing impact
• [ ] Spec PR for any new API feature
• [ ] Conformance test for any change to the spec

Release Note

Docs

[codecov[bot]]

Codecov Report

Merging #6474 (f8f5e21) into main (1d00055) will decrease coverage by 0.06%. The diff coverage is 73.91%.

@@            Coverage Diff             @@
##             main    #6474      +/-   ##
==========================================
- Coverage   82.16%   82.09%   -0.07%     
==========================================
  Files         235      235              
  Lines       11700    11714      +14     
==========================================
+ Hits         9613     9617       +4     
- Misses       1620     1628       +8     
- Partials      467      469       +2     

Impacted Files	Coverage Δ
pkg/reconciler/broker/controller.go	85.00% <50.00%> (+0.25%)	:arrow_up:
cmd/event_display/main.go	58.06% <66.66%> (+4.49%)	:arrow_up:
pkg/adapter/v2/main_message.go	45.16% <66.66%> (-5.69%)	:arrow_down:
...econciler/inmemorychannel/dispatcher/controller.go	88.46% <66.66%> (+0.30%)	:arrow_up:
pkg/adapter/v2/configurator_configmap.go	82.44% <75.00%> (+0.18%)	:arrow_up:
pkg/adapter/v2/configurator_environment.go	79.16% <75.00%> (-6.55%)	:arrow_down:
pkg/adapter/v2/config.go	81.70% <100.00%> (ø)
pkg/adapter/v2/main.go	68.13% <100.00%> (+0.15%)	:arrow_up:
... and 1 more

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[mgencur]

The failures in "Downstream / Unit Test (eventing-autoscaler-keda, knative-sandbox)" is not related to this PR, I believe.

[knative-prow[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: matzew, mgencur

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