Update http requirement from ~> 3.1.0 to ~> 3.2.0 in /gcp

Updates the requirements on http to permit the latest version.

---
updated-dependencies:
- dependency-name: http
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

gcp/versions.tf

@@ -13,7 +13,7 @@ terraform {
       version = "~> 3.4.3"
     }
     http = {
-      version = "~> 3.1.0"
+      version = "~> 3.2.0"
     }
   }
 }