fix: Adjust pagination limit to be zero-based (#2663)

There isn't a use-case for querying a limit of zero. Using
-1 led to issues when using default parameters for querying.

coderd/coderdtest/coderdtest.go

@@ -396,7 +396,7 @@ func AwaitWorkspaceAgents(t *testing.T, client *codersdk.Client, build uuid.UUID
 			}
 		}
 		return true
-	}, 5*time.Second, 25*time.Millisecond)
+	}, 15*time.Second, 50*time.Millisecond)
 	return resources
 }