Strapi v4 deploy on DigitalOcean overwrites the uploads folder including the images

Droplet Basic Plan
Ubuntu 18.04 stack

Linked to GitHub, my master branch with autodeploy is activated.
The public folder is by default in my branch like the .gitignore informations.

public/uploads/*
!public/uploads/.gitkeep

Build Command
npm run build (“strapi build”)

Run Command
npm start ( “strapi start”)

STRAPI VERSION
v4.3.6

NODE VERSION
v16.19.0

EVENTS DIGITALOCEAN
1 Node.js Buildpack v0.3.4
Buildpack Docs
Install dependencies using NPM or Yarn
2 Procfile Buildpack v0.0.3
Configure default run commands from the Procfile if one exists
3 Custom Build Command Buildpack v0.1.1
Buildpack Docs
npm run build

Thank you for helping me.