### 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_
boto_config = botocore.config.Config(s3={"addressing_style": "virtual"})
    if os.environ.get("TEST_TARGET") == "AWS_CLOUD":
        return boto3.client("s3", config=boto_config)
    
    if os.environ.get("TEST_DISABLE_RETRIES_AND_TIMEOUTS"):
        external_boto_config = botocore.config.Config(
            connect_timeout=1_000, read_timeout=1_000, retries={"total_max_attempts": 1}
        )
        boto_config = boto_config.merge(external_boto_config)
    return aws_stack.create_external_boto_client("s3", config=boto_config)
@pytest.fixture(scope="class")
def s3_presigned_client() -> "S3Client":
    if os.environ.get("TEST_TARGET") == "AWS_CLOUD":
        return _client("s3")
    
    boto_config = (
        botocore.config.Config(
            connect_timeout=1_000, read_timeout=1_000, retries={"total_max_attempts": 1}
        )
        if os.environ.get("TEST_DISABLE_RETRIES_AND_TIMEOUTS")
        else None
    )
    return aws_stack.connect_to_service(
        "s3",
        config=boto_config,
        aws_access_key_id=TEST_AWS_ACCESS_KEY_ID,
        aws_secret_access_key=TEST_AWS_SECRET_ACCESS_KEY,
    )
@pytest.fixture(scope="class")
def s3_resource() -> "S3ServiceResource":