### 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: CreateBucketRequest,
    ) -> CreateBucketOutput:
        bucket_name = request["Bucket"]
        validate_bucket_name(bucket=bucket_name)
        response: CreateBucketOutput = call_moto(context)
        
        if request.get("CreateBucketConfiguration"):
            location = request["CreateBucketConfiguration"].get("LocationConstraint")
            if location and location != "us-east-1":
                response["Location"] = get_full_default_bucket_location(bucket_name)
        if "Location" not in response:
            response["Location"] = f"/{bucket_name}"
        self._cors_handler.invalidate_cache()
        return response
    def delete_bucket(
        self, context: RequestContext, bucket: BucketName, expected_bucket_owner: AccountId = None
    ) -> None:
        call_moto(context)
        self._clear_bucket_from_store(bucket)
        self._cors_handler.invalidate_cache()
    def get_bucket_location(