[flyteagent] Add `agents` and `agentForTaskTypes` in helm chart #6127

Job	Run time
test-bootstrap	43s
test-bootstrap	43s
build-and-push-single-binary-image	5m 23s
build-and-push-single-binary-image	5m 23s
sandbox-bundled-functional-tests	38m 2s
sandbox-bundled-functional-tests	38m 12s
sandbox-bundled-offloaded-functional-tests	37m 46s
sandbox-bundled-offloaded-functional-tests	37m 46s
build-and-push-sandbox-bundled-image	0s
build-and-push-sandbox-bundled-image	0s
	2h 43m 58s

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