### 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_
"""
    ref. https://docs.aws.amazon.com/AmazonS3/latest/userguide/bucketnamingrules.html
    """
    return True if re.match(BUCKET_NAME_REGEX, bucket_name) else False
def is_canned_acl_bucket_valid(canned_acl: str) -> bool:
    return canned_acl in VALID_CANNED_ACLS_BUCKET
def get_header_name(capitalized_field: str) -> str:
    headers_parts = re.split(r"([A-Z][a-z]+)", capitalized_field)
    return f"x-amz-{'-'.join([part.lower() for part in headers_parts if part])}"
def is_valid_canonical_id(canonical_id: str) -> bool:
    """
    Validate that the string is a hex string with 64 char
    """
    try:
        return int(canonical_id, 16) and len(canonical_id) == 64
    except ValueError:
        return False
def forwarded_from_virtual_host_addressed_request(headers: Dict[str, str]) -> bool:
    """
    Determines if the request was forwarded from a v-host addressing style into a path one
    """
    
    
    match = re.match(S3_VIRTUAL_HOSTNAME_REGEX, headers.get(S3_VIRTUAL_HOST_FORWARDED_HEADER, ""))
    
    return True if match and match.group(3) else False
def get_bucket_from_moto(