ci(all): fix incorrect reference to job name in nightly (#3551)
ci(all): fix incorrect reference to job name in nightly (#3551)

I caught my error with this test: https://fusion.corp.google.com/projectanalysis/summary/KOKORO/prod:cloud-devrel%2Fclient-libraries%2Fgo%2Fgoogle-cloud-go%2Fnightly%2Flogging%2Fgo115?search_pattern=google-cloud-go%2Fnightly&include_inactive_projects=false

I updated the script to reference the correct kokoro job name. 

Thanks for all the PR reviews on this! I appreciate the patience on this :) 
googleapis/google-cloud-go,googleapis/google-cloud-go,googleapis/google-cloud-go,googleapis/google-cloud-go