fix(rds): MySQL Cluster version 8.0 uses wrong Parameter for S3 import (#19145)

There was recently a new major version of the Aurora MySQL released (8.0).
Apparently, it requires a different Parameter for S3 imports (`aws_default_s3_role`)
than `aurora_load_from_s3_role`, which the pre-8.0 versions use.

Fixes #19126

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: skinny85

packages/@aws-cdk/aws-rds/lib/cluster-engine.ts

@@ -177,7 +177,11 @@ abstract class MySqlClusterEngineBase extends ClusterEngineBase {
       })
       : config.parameterGroup);
     if (options.s3ImportRole) {
-      parameterGroup?.addParameter('aurora_load_from_s3_role', options.s3ImportRole.roleArn);
+      // major version 8.0 uses a different name for the S3 import parameter
+      const s3ImportParam = this.engineVersion?.majorVersion === '8.0'
+        ? 'aws_default_s3_role'
+        : 'aurora_load_from_s3_role';
+      parameterGroup?.addParameter(s3ImportParam, options.s3ImportRole.roleArn);
     }
     if (options.s3ExportRole) {
       parameterGroup?.addParameter('aurora_select_into_s3_role', options.s3ExportRole.roleArn);

packages/@aws-cdk/aws-rds/test/cluster.test.ts

@@ -1,6 +1,7 @@
 import { Match, Template } from '@aws-cdk/assertions';
 import * as ec2 from '@aws-cdk/aws-ec2';
 import { ManagedPolicy, Role, ServicePrincipal } from '@aws-cdk/aws-iam';
+import * as iam from '@aws-cdk/aws-iam';
 import * as kms from '@aws-cdk/aws-kms';
 import * as logs from '@aws-cdk/aws-logs';
 import * as s3 from '@aws-cdk/aws-s3';
@@ -953,7 +954,6 @@ describe('cluster', () => {
     });
   });
 
-
   test('addRotationSingleUser() with VPC interface endpoint', () => {
     // GIVEN
     const stack = new cdk.Stack();
@@ -1707,6 +1707,26 @@ describe('cluster', () => {
     Template.fromStack(stack).resourceCountIs('AWS::RDS::DBClusterParameterGroup', 0);
   });
 
+  test('MySQL cluster in version 8.0 uses aws_default_s3_role as a Parameter for S3 import, instead of aurora_load_from_s3_role', () => {
+    // GIVEN
+    const stack = testStack();
+    const vpc = new ec2.Vpc(stack, 'VPC');
+
+    // WHEN
+    new DatabaseCluster(stack, 'Database', {
+      instanceProps: { vpc },
+      engine: DatabaseClusterEngine.auroraMysql({ version: AuroraMysqlEngineVersion.VER_3_01_0 }),
+      s3ImportRole: iam.Role.fromRoleArn(stack, 'S3ImportRole', 'arn:aws:iam::123456789012:role/my-role'),
+    });
+
+    Template.fromStack(stack).hasResourceProperties('AWS::RDS::DBClusterParameterGroup', {
+      Family: 'aurora-mysql8.0',
+      Parameters: {
+        aws_default_s3_role: 'arn:aws:iam::123456789012:role/my-role',
+      },
+    });
+  });
+
   test('throws when s3ExportRole and s3ExportBuckets properties are both specified', () => {
     // GIVEN
     const stack = testStack();