### 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_
"""
        Moto tries to parse the TagSet and then iterate of it, not checking if it returned something
        Potential to be an easy upstream fix
        """
        try:
            tags: Dict[str, str] = fn(*args, **kwargs)
        except TypeError:
            tags = {}
        return tags
    @patch(moto_s3_responses.S3Response._cors_from_body)
    def _fix_parsing_cors_rules(fn, *args, **kwargs) -> List[Dict]:
        """
        Fix parsing of CORS Rules from moto, you can set empty origin in AWS. Replace None by an empty string
        """
        cors_rules = fn(*args, **kwargs)
        for rule in cors_rules:
            if rule["AllowedOrigin"] is None:
                rule["AllowedOrigin"] = ""
        return cors_rules
    @patch(moto_s3_responses.S3Response.is_delete_keys)
    def s3_response_is_delete_keys(fn, self):