Retain log groups according to retention policy of E2E tests to allow for easier debugging.

Author: phipag

powertools-e2e-tests/src/test/java/software/amazon/lambda/powertools/testutils/Infrastructure.java

@@ -247,7 +247,7 @@ private Stack createStackWithLambda() {
                 .create(e2eStack, functionName + "-logs")
                 .logGroupName("/aws/lambda/" + functionName)
                 .retention(RetentionDays.ONE_DAY)
-                .removalPolicy(RemovalPolicy.DESTROY)
+                .removalPolicy(RemovalPolicy.RETAIN)
                 .build();
 
         if (!StringUtils.isEmpty(idempotencyTable)) {