unable to add local files as storage source in label studio docker

I am unable to add local files as storage source in label studio. My docker compose file looks like this
```
label_studio:
image: heartexlabs/label-studio:latest
userns_mode: "host"
hostname: label_studio
volumes:
- /etc/label-studio/data:/label-studio/data/:rw
depends_on:
- db
network_mode: host
environment:
- DJANGO_DB=default
- LABEL_STUDIO_LOCAL_FILES_SERVING_ENABLED=true
- LABEL_STUDIO_LOCAL_FILES_DOCUMENT_ROOT=/label-studio/data/
- LOCAL_FILES_SERVING_ENABLED=true
- LOCAL_FILES_DOCUMENT_ROOT=/label-studio/data/
- POSTGRE_NAME=something
- POSTGRE_USER=something
- POSTGRE_PASSWORD=
- POSTGRE_PORT=7564
- POSTGRE_HOST=localhost
- JSON_LOG=1
restart: always
```
However adding `/label-studio/data/` as absolute path in source storage gives the following issue.
```
RUNTIME ERROR
Validation error
[ErrorDetail(string="Serving local files can be dangerous, so it's disabled by default. You can enable it with LOCAL_FILES_SERVING_ENABLED environment variable, please check docs: https://labelstud.io/guide/storage.html#Local-storage", code='invalid')]
Version: 1.7.2
```