chore(rds): add support for 8.0.mysql_aurora.3.07.0 (#30479)

### Reason for this change
Add support for newly supported `8.0.mysql_aurora.3.07.0`.
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraMySQLReleaseNotes/AuroraMySQL.Updates.3070.html

### Description of changes
Add a new version as a new property to `AuroraMysqlEngineVersion` class.


### Description of how you validated changes
I used the AWS CLI to verify that the new version is available.
```bash
aws rds describe-db-engine-versions --engine aurora-mysql --query "DBEngineVersions[?EngineVersion=='8.0.mysql_aurora.3.07.0']"
[
    {
        "Engine": "aurora-mysql",
        "EngineVersion": "8.0.mysql_aurora.3.07.0",
        "DBParameterGroupFamily": "aurora-mysql8.0",
        "DBEngineDescription": "Aurora MySQL",
        "DBEngineVersionDescription": "Aurora MySQL 3.07.0 (compatible with MySQL 8.0.36)",
        "ValidUpgradeTarget": [],
        "ExportableLogTypes": [
            "audit",
            "error",
            "general",
            "slowquery"
        ],
        "SupportsLogExportsToCloudwatchLogs": true,
        "SupportsReadReplica": false,
        "SupportedEngineModes": [
            "provisioned"
        ],
        "SupportedFeatureNames": [
            "Bedrock"
        ],
        "Status": "available",
        "SupportsParallelQuery": true,
        "SupportsGlobalDatabases": true,
        "MajorEngineVersion": "8.0",
        "SupportsBabelfish": false,
        "SupportsLimitlessDatabase": false,
        "SupportsCertificateRotationWithoutRestart": true,
        "SupportedCACertificateIdentifiers": [
            "rds-ca-2019",
            "rds-ca-ecc384-g1",
            "rds-ca-rsa4096-g1",
            "rds-ca-rsa2048-g1"
        ],
        "SupportsLocalWriteForwarding": true,
        "SupportsIntegrations": true
    }
]
```

Hopefully this will be automated in the future.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

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

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

@@ -607,6 +607,8 @@ export class AuroraMysqlEngineVersion {
   public static readonly VER_3_05_2 = AuroraMysqlEngineVersion.builtIn_8_0('3.05.2');
   /** Version "8.0.mysql_aurora.3.06.0". */
   public static readonly VER_3_06_0 = AuroraMysqlEngineVersion.builtIn_8_0('3.06.0');
+  /** Version "8.0.mysql_aurora.3.07.0". */
+  public static readonly VER_3_07_0 = AuroraMysqlEngineVersion.builtIn_8_0('3.07.0');
 
   /**
    * Create a new AuroraMysqlEngineVersion with an arbitrary version.