handle_deployment_metadata in a task

backend/Cargo.lock

@@ -14979,6 +14979,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sqlx",
+ "tokio",
  "tracing",
  "uuid",
  "windmill-common",

backend/ee-repo-ref.txt

@@ -1 +1 @@
-ea37519393e6252ef7f663d2bfe6e3dbd138c1b4
+f71bb68f5e08399dba557fb95c2c1fb365312260

backend/windmill-git-sync/Cargo.toml

@@ -21,4 +21,5 @@ serde_json.workspace = true
 tracing.workspace = true
 windmill-common = { workspace = true, default-features = false }
 windmill-queue.workspace = true
-regex = "1.10.3"
+regex = "1.10.3"
+tokio = { workspace = true, features = ["full"] }