Merge pull request #32803 from michaelryanpeter/BZ1958300-Update-GCP-Regions-2

Author: Bob Furu

modules/installation-gcp-regions.adoc

@@ -19,6 +19,7 @@ regions:
 * `asia-southeast1` (Jurong West, Singapore)
 * `asia-southeast2` (Jakarta, Indonesia)
 * `australia-southeast1` (Sydney, Australia)
+* `europe-central2` (Warsaw, Poland)
 * `europe-north1` (Hamina, Finland)
 * `europe-west1` (St. Ghislain, Belgium)
 * `europe-west2` (London, England, UK)