### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

copyObject and putObject (and perhaps other requests) requests are accepted and do not return an error when an SSE KMS key is specified. 

### Expected Behavior

The error which should be returned is KMS.NotFoundException.

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    Localstack testcontainers 

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

   Call copyObject/putObject via latest version using AWS SDK V2 and specific a ssekmsKeyId.

```java
final var copyObjectRequestBuilder =
        CopyObjectRequest.builder()
            .serverSideEncryption(ServerSideEncryption.AWS_KMS)
            .ssekmsKeyId("NON-EXISTENT KMS KEY")
            .sourceBucket(sourceBucketName)
            .sourceKey(sourceKey)
            .destinationBucket(destinationBucket)
            .destinationKey(destinationKey);
final var copyObjectResponse = sourceRegionS3Client.copyObject(copyObjectRequest); // Error should be thrown here but localstack does not return an error
```

### Environment

```markdown
- OS: MacOS 13.0
- LocalStack: Latest (v1.2.0)
```


### Anything else?

_No response_
self,
        context: RequestContext,
        bucket: BucketName,
        delete: Delete,
        mfa: MFA = None,
        request_payer: RequestPayer = None,
        bypass_governance_retention: BypassGovernanceRetention = None,
        expected_bucket_owner: AccountId = None,
        checksum_algorithm: ChecksumAlgorithm = None,
    ) -> DeleteResult:
        objects: List[ObjectIdentifier] = delete.get("Objects")
        deleted_objects = {}
        quiet = delete.get("Quiet", False)
        for object in objects:
            key = object["Key"]
            
            s3_notification_ctx = S3EventNotificationContext.from_request_context(
                context, key_name=key, allow_non_existing_key=True
            )
            deleted_objects[key] = s3_notification_ctx
        result: DeleteResult = call_moto(context)
        for deleted in result.get("Deleted"):
            if deleted_objects.get(deleted["Key"]):
                self._notify(context, deleted_objects.get(deleted["Key"]))