Cherry-pick 3.4 performCleanup in release.JenkinsFile to clean the .npmrc file from the correct folder#3048

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Cherry-pick-3.4-cherry-pick-Change-performCleanup-to-delete-from-e2e-tests-folderOntotext-AD/graphdb-workbench:Cherry-pick-3.4-cherry-pick-Change-performCleanup-to-delete-from-e2e-tests-folderCopy head branch name to clipboard