fix(appconfig): stringify configurationVersion in block params

Author: TheodoreSpeaks

apps/sim/blocks/blocks/appconfig.ts

@@ -394,6 +394,7 @@ export const AppConfigBlock: BlockConfig<
           versionNumber,
           deploymentNumber,
           latestVersionNumber,
+          configurationVersion,
           ...rest
         } = params
 
@@ -405,6 +406,12 @@ export const AppConfigBlock: BlockConfig<
           return Number.isNaN(parsed) ? undefined : parsed
         }
 
+        // Stringify: a versionNumber piped from an upstream step resolves to a JSON number,
+        // but AppConfig's ConfigurationVersion (version number or label) must be a string.
+        if (configurationVersion !== undefined && configurationVersion !== null) {
+          result.configurationVersion = String(configurationVersion)
+        }
+
         const maxResultsInt = toInt(maxResults)
         if (maxResultsInt !== undefined) result.maxResults = maxResultsInt