fix(tekton-catalog): Refactor kfptask #1644

Job	Run time
python-lint	15s
progress-report	1m 23s
backend-integration	5s
check-doc-links	33s
check-mdtoc	6s
check-license	4s
python-unittest (3.8)	1m 4s
python-unittest (3.9)	1m 6s
run-go-unittests	3m 32s
python-unittest (3.10)	1m 8s
run-pipelineloop-unittests	2m 26s
run-v2-custom-controller-image-builds	5m 6s
python-unittest (3.11)	1m 0s
validate-testdata	2m 40s
	20m 28s

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