### 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_
"""
        Returns Localstack directory paths as they are defined within the container. Everything shared and writable
        lives in /var/lib/localstack or /tmp/localstack.
        :returns: Directories object
        """
        
        
        var_libs = (
            os.environ.get("CONTAINER_VAR_LIBS_FOLDER", "").strip() or "/tmp/localstack/var_libs"
        )
        cache = os.environ.get("CONTAINER_CACHE_FOLDER", "").strip() or "/tmp/localstack/cache"
        tmp = (
            os.environ.get("CONTAINER_TMP_FOLDER", "").strip() or "/tmp/localstack"
        )  
        data_dir = os.environ.get("CONTAINER_DATA_DIR_FOLDER", "").strip() or (
            DATA_DIR if in_docker() else "/tmp/localstack_data"
        )  
        return Directories(
            static_libs=os.path.join(MODULE_MAIN_PATH, "infra"),
            var_libs=var_libs,
            cache=cache,
            tmp=tmp,
            functions=HOST_TMP_FOLDER,  
            data=data_dir,
            config=None,  
            logs="/tmp/localstack/logs",
            init="/docker-entrypoint-initaws.d",
        )
    def mkdirs(self):