feat(operator): rework Task and Evaluation span structure

[odubajDT]

Fixes: #411

[codecov]

Codecov Report

Merging #465 (e4484e8) into main (247d026) will increase coverage by 7.72%.
The diff coverage is 60.29%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #465      +/-   ##
==========================================
+ Coverage   43.77%   51.49%   +7.72%     
==========================================
  Files          27       28       +1     
  Lines        2136     2101      -35     
==========================================
+ Hits          935     1082     +147     
+ Misses       1115      920     -195     
- Partials       86       99      +13     

Impacted Files	Coverage Δ
...or/controllers/keptnworkloadinstance/controller.go	51.03% <0.00%> (ø)
...ptnworkloadinstance/reconcile_prepostdeployment.go	0.00% <0.00%> (ø)
...ptnworkloadinstance/reconcile_prepostevaluation.go	0.00% <0.00%> (ø)
operator/controllers/common/evaluationhandler.go	72.64% <51.85%> (+72.64%)	⬆️
operator/controllers/common/taskhandler.go	75.43% <62.50%> (+75.43%)	⬆️
operator/controllers/common/spanitem.go	78.57% <78.57%> (ø)
operator/controllers/common/phasehandler.go	80.95% <84.61%> (+2.00%)	⬆️
operator/controllers/keptnappversion/controller.go	72.30% <90.00%> (ø)
operator/controllers/common/phaseitem.go	100.00% <100.00%> (+4.68%)	⬆️
operator/controllers/common/spanhandler.go	83.33% <100.00%> (ø)
... and 6 more

Flag	Coverage Δ
keptn-lifecycle-operator	57.02% <60.29%> (+8.71%)	⬆️
scheduler	4.52% <ø> (ø)

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
3 Code Smells

No Coverage information
2.7% Duplication

[RealAnna]

LGTM