build: enable manually running integration tests (#255)
build: enable manually running integration tests (#255)

* build: enable manually running integration tests

* fix: move command to conditional step

* build: add scheduled run + only allow staging or prod endpoint
GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter