Update test workflow to use push trigger (workflow_dispatch requires … #1

Job	Run time
test / prepare-build	25s
test / notify-image-available	3s
test / dockerfiles-validation (lcm-bricks) / dockerfile-validation	24s
test / dockerfiles-validation (lcm-bricks-nextversion) / dockerfile-validation	26s
test / charts-validation	0s
test / helm-charts-build	0s
test / services-build (lcm-bricks-nextversion)	4m 9s
test / services-build (lcm-bricks)	12m 29s
test / build-helmreleases	0s
test / create-manual-merge-prod-pr	0s
test / create-staging-pr	0s
test / create-auto-merge-prod-pr	0s
test / create-comment-with-pr-urls	0s
test / lcm-integration-e2e / LCM-integration-e2e-tests	11m 29s
test / wait-for-deployment	0s
test / revert-staging-pr / revert-staging-pr	1d 0h 0m 1s
test / promote-to-stable	-1s
	1d 0h 29m 25s

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