feat: create new ttr for tiertemplate updates

[mfrancisc]

This PR triggers a TTR creation when the tiertemlpate content changes or there is a change in the NSTemplateTier parameters field.

follow up from #1103

Paired with: codeready-toolchain/toolchain-e2e#1102

Jira: https://issues.redhat.com/browse/KUBESAW-257

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mfrancisc

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[mfrancisc]

/retest

updated e2e

[metlos]

I only have 2 slight readability improvement suggestions, otherwise looks great!

[codecov]

Codecov Report

Attention: Patch coverage is 74.07407% with 7 lines in your changes missing coverage. Please review.

Project coverage is 79.52%. Comparing base (e2d2b30) to head (8512d2a).

Files with missing lines	Patch %	Lines
...ollers/nstemplatetier/nstemplatetier_controller.go	69.56%	5 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1130      +/-   ##
==========================================
- Coverage   79.53%   79.52%   -0.02%     
==========================================
  Files          80       80              
  Lines        8086     8096      +10     
==========================================
+ Hits         6431     6438       +7     
- Misses       1470     1472       +2     
- Partials      185      186       +1     

Files with missing lines	Coverage Δ
test/nstemplatetier/assertion.go	100.00% <100.00%> (ø)
...ollers/nstemplatetier/nstemplatetier_controller.go	82.23% <69.56%> (-1.22%)	⬇️

[sonarqubecloud]

Quality Gate passed

Issues
7 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[openshift-ci]

@mfrancisc: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e	d17e8d2	link	true	/test e2e

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