In resources.sources: it looks like you forgot to define url/sha256 or armhf.url/armhf.sha256

[benjaminprevost]

Describe the bug

I try to upgrade mattermost app.

Context

• Hardware: Raspberry PI4
• YunoHost version: 11.2.5
• I have access to my server: Through SSH and the webadmin
• If upgrading, current package version: I try to upgrade mattermost from 7.2.0ynh1 to 9.0.1ynh1

Steps to reproduce

```sh
sudo yunohost app upgrade mattermost
```

Expected behavior

armhf.url and armhf.sha256 has been defined in /var/cache/yunohost/app_tmp_work_dirs/app_42pxzro9/manifest.toml

[resources]
    [resources.sources]

        [resources.sources.main]
        amd64.url = "https://releases.mattermost.com/9.0.1/mattermost-team-9.0.1-linux-amd64.tar.gz"
        amd64.sha256 = "70ee59a52f598b3c994580633787ade249198a1d5d0e9d509e36f79e236e9aae"
        arm64.url = "https://releases.mattermost.com/9.0.1/mattermost-team-9.0.1-linux-arm64.tar.gz"
        arm64.sha256 = "f28d23b44faca195c4d787054b39e8d45ce8fc4ccaaf84d40897b5540b5927e9"
        armhf.url = "https://github.com/SmartHoneybee/ubiquitous-memory/releases/download/v7.5.2/mattermost-v7.5.2-linux-arm.tar.gz"
        armhf.sha256 = "b26a4b676ee92ac848fa2993aa67559238ba7d8c1d0e6f7ffdd79ad8fb4942f3"

        [resources.sources.enterprise]
        amd64.url = "https://releases.mattermost.com/9.0.1/mattermost-enterprise-9.0.1-linux-amd64.tar.gz"
        amd64.sha256 = "0dc57e88667629305ca55d642fd92e811cf25aee2c83941e9a69f306ad846b44"
        arm64.url = "https://releases.mattermost.com/9.0.1/mattermost-enterprise-9.0.1-linux-arm64.tar.gz"
        arm64.sha256 = "00834c149292604db3f9bf3b483c90b4f986aa6d392719f8ae223b527801d78d"

Logs

https://paste.yunohost.org/raw/ivilahereg