### 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,
        request: HeadObjectRequest,
    ) -> HeadObjectOutput:
        response: HeadObjectOutput = call_moto(context)
        response["AcceptRanges"] = "bytes"
        return response
    @handler("GetObject", expand=False)
    def get_object(self, context: RequestContext, request: GetObjectRequest) -> GetObjectOutput:
        key = request["Key"]
        bucket = request["Bucket"]
        if is_object_expired(context, bucket=bucket, key=key):
            
            
            
            ex = NoSuchKey("The specified key does not exist.")
            ex.Key = key
            raise ex
        response: GetObjectOutput = call_moto(context)
        
        if "VersionId" in response and bucket not in self.get_store().bucket_versioning_status:
            response.pop("VersionId")
        for request_param, response_param in ALLOWED_HEADER_OVERRIDES.items():
            if request_param_value := request.get(request_param):  
                response[response_param] = request_param_value  
        response["AcceptRanges"] = "bytes"
        return response
    @handler("PutObject", expand=False)
    def put_object(