### 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_
bucket_2_name = f"bucket-{short_uid()}"
        s3_create_bucket_with_client(
            client_2,
            Bucket=bucket_2_name,
            CreateBucketConfiguration={"LocationConstraint": region_2},
        )
        response = client_2.get_bucket_location(Bucket=bucket_2_name)
        snapshot.match("get_bucket_location_bucket_2", response)
        # asse
        with pytest.raises(Exception) as exc:
            client_2.create_bucket(Bucket=f"bucket-{short_uid()}")
        snapshot.match("create_bucket_constraint_exc", exc.value.response)
        bucket_3_name = f"bucket-{short_uid()}"
        response = s3_create_bucket_with_client(
            client_2,
            Bucket=bucket_3_name,
            CreateBucketConfiguration={"LocationConstraint": region_2},
        )
        snapshot.match("create_bucket_bucket_3", response)
        response = client_2.get_bucket_location(Bucket=bucket_3_name)
        snapshot.match("get_bucket_location_bucket_3", response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider,
        paths=[
            "$..ContentLanguage",
            "$..VersionId",
        ],
    )
    def test_get__with_anon_credentials(self, s3_client, s3_create_bucket, snapshot):