Revert catch of main, since we have other process handlers to catch #5636

Job	Run time
build-and-check	2m 37s
test-integration-packages/billing	1m 0s
test-integration-cli	41s
test-integration-web	44s
test-packages/billing	1m 1s
test-.agents	38s
test-integration-packages/internal	1m 1s
test-integration-sdk	44s
test-common	39s
test-integration-common	1m 9s
test-packages/agent-runtime	45s
test-integration-packages/agent-runtime	47s
test-packages/internal	52s
test-cli	51s
test-sdk	50s
test-web	43s
	15m 2s

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