Uniquify the stand-alone step for checking agent status (elastic#993) (…

…elastic#996)

There were 2 steps identical in both the stand-alone and fleet test suites.
Running the stand-alone test suite was picking up the step from the fleet test
suite and trying to reference the FleetTestSuite structure which did not hold
any of the agent information (like the hostname) for the stand alone tests.

This fixes it so that the standalone test step is being referenced in the
correct test suite.

Signed-off-by: Adam Stokes <51892+adam-stokes@users.noreply.github.com>
(cherry picked from commit d9e3b51)

Co-authored-by: Adam Stokes <51892+adam-stokes@users.noreply.github.com>

e2e/_suites/fleet/features/stand_alone_agent.feature

@@ -54,7 +54,7 @@ Examples: Ubi8
 @run_fleet_server
 Scenario Outline: Deploying a <image> stand-alone agent with fleet server mode
   When a "<image>" stand-alone agent is deployed with fleet server mode
-  Then the agent is listed in Fleet as "online"
+  Then the stand-alone agent is listed in Fleet as "online"
 
 @default
 Examples: default

e2e/_suites/fleet/stand-alone.go

@@ -68,7 +68,7 @@ func (sats *StandAloneTestSuite) contributeSteps(s *godog.ScenarioContext) {
 	s.Step(`^there is new data in the index from agent$`, sats.thereIsNewDataInTheIndexFromAgent)
 	s.Step(`^the "([^"]*)" docker container is stopped$`, sats.theDockerContainerIsStopped)
 	s.Step(`^there is no new data in the index after agent shuts down$`, sats.thereIsNoNewDataInTheIndexAfterAgentShutsDown)
-	s.Step(`^the agent is listed in Fleet as "([^"]*)"$`, sats.theAgentIsListedInFleetWithStatus)
+	s.Step(`^the stand-alone agent is listed in Fleet as "([^"]*)"$`, sats.theAgentIsListedInFleetWithStatus)
 }
 
 func (sats *StandAloneTestSuite) theAgentIsListedInFleetWithStatus(desiredStatus string) error {