Enhance ci env #162

Job	Run time
kserve-image-build	6m 19s
poetry-check	26s
graph-tests-images-build	2m 27s
predictor-runtime-build	9m 13s
explainer-runtime-build	3m 32s
test-with-helm	8m 10s
test-graph	19m 39s
test-transformer-explainer-mms	21m 14s
test-path-based-routing	27m 0s
test-kourier	13m 51s
test-predictor	28m 8s
test-raw	13m 6s
test-qpext	9m 11s
	2h 42m 16s

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