fix(athena-driver): Allow to pass custom credentials, fix #7407 (#7429)

Co-authored-by: Alberto Lago Alvarado <[email protected]>

Author: trompa

packages/cubejs-athena-driver/src/AthenaDriver.ts

@@ -126,16 +126,16 @@ export class AthenaDriver extends BaseDriver implements DriverInterface {
       getEnv('athenaAwsSecret', { dataSource });
 
     const { schema, ...restConfig } = config;
-
+    
     this.schema = schema ||
       getEnv('dbName', { dataSource }) ||
       getEnv('dbSchema', { dataSource });
 
     this.config = {
-      ...restConfig,
       credentials: accessKeyId && secretAccessKey
         ? { accessKeyId, secretAccessKey }
         : undefined,
+      ...restConfig,
       region:
         config.region ||
         getEnv('athenaAwsRegion', { dataSource }),