### 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_
snapshot.add_transformer(
            [
                snapshot.transform.key_value("DisplayName"),
                snapshot.transform.key_value("ID", value_replacement="owner-id"),
            ]
        )
        s3_client.put_bucket_cors(
            Bucket=s3_bucket,
            CORSConfiguration={
                "CORSRules": [
                    {
                        "AllowedMethods": ["GET", "POST", "PUT", "DELETE"],
                        "AllowedOrigins": ["localhost"],
                    }
                ]
            },
        )
        response = s3_client.get_bucket_cors(Bucket=s3_bucket)
        snapshot.match("get-bucket-cors", response)
        result = s3_client.get_bucket_acl(Bucket=s3_bucket)
        snapshot.match("get-bucket-acl", result)
        with 
            s3_client.get_bucket_acl(Bucket="bucket-not-exists")
        snapshot.match("get-bucket-not-exists", e.value.response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider,
        paths=["$..VersionId", "$..ContentLanguage", "$..Error.RequestID"],
    )
    def test_s3_uppercase_key_names(self, s3_client, s3_create_bucket, snapshot):