docs(logger): update env variable

Author: dreamorosi

docs/core/logger.md

@@ -167,7 +167,7 @@ When debugging in non-production environments, you can log the incoming event us
 
 === "`logEventIfEnabled()`"
 
-    ```typescript hl_lines="1 7"
+    ```typescript hl_lines="1 8"
     --8<-- "examples/snippets/logger/logEventManual.ts"
     ```
 

examples/snippets/logger/logEventManual.ts

@@ -1,6 +1,7 @@
-process.env.POWERTOOLS_LOG_EVENT = 'true';
+process.env.POWERTOOLS_LOGGER_LOG_EVENT = 'true';
 
 import { Logger } from '@aws-lambda-powertools/logger';
+
 const logger = new Logger();
 
 export const handler = async (event: unknown) => {