[installer-tests] fix the subdomain for upgrade tests to include the provider

Author: nandajavarma

.werft/jobs/build/self-hosted-upgrade-tests.ts

@@ -49,14 +49,13 @@ export async function triggerUpgradeTests(werft: Werft, config: JobConfig, usern
     // the following bit make sure that the subdomain stays the same upon multiple runs, and always start with release
     const regex = /[\/,\.]/g;
     const subdomain: string = config.repository.branch.replace(regex, '-')
-    annotation = annotation.concat(` -a subdomain=${subdomain}`)
 
     for (let phase in phases) {
         const upgradeConfig = phases[phase];
 
         werft.phase(upgradeConfig.phase, upgradeConfig.description);
 
-        annotation = `${annotation} -a cluster=${phase} -a updateGitHubStatus=gitpod-io/gitpod`
+        annotation = `${annotation} -a cluster=${phase} -a updateGitHubStatus=gitpod-io/gitpod -a subdomain=${subdomain}-${upgradeConfig.cloud}`
 
         const testFile: string = `.werft/${phase}-installer-tests.yaml`;