Handle cases when backend context does not have Grafana version (#236) #642

Job	Run time
lint / lint	29s
build / build	5m 37s
e2e-tests / tests (10.3.0, accessControlOnCall,idForwarding,externalServiceAccounts, false, local-chrome-10.3...	3m 19s
e2e-tests / tests (10.4.5, accessControlOnCall,idForwarding,externalServiceAccounts, true, local-chrome-10.4....	3m 4s
e2e-tests / tests (10.4.7, ws://localhost:9222, externalServiceAccounts, false, remote-chrome-10.4.7-without-...	3m 49s
e2e-tests / tests (11.1.0, ws://localhost:9222, accessControlOnCall,idForwarding,externalServiceAccounts, fal...	3m 44s
e2e-tests / tests (11.3.0-security-01, accessControlOnCall,idForwarding,externalServiceAccounts, false, remot...	3m 31s
e2e-tests / tests (11.4.0, ws://localhost:9222, accessControlOnCall,idForwarding,externalServiceAccounts, fal...	3m 5s
e2e-tests / tests (11.4.0, ws://localhost:9222, accessControlOnCall,idForwarding,externalServiceAccounts, tru...	3m 29s
package	0s
	30m 7s

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