fix: create armel source

[yalh76]

Problem

The armel architecture is not supported

Solution

Simply clone the arm.

Fixes #134

PR Status

• [ ] Code finished and ready to be reviewed/tested
• [ ] The fix/enhancement were manually tested (if applicable)

Automatic tests

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[yalh76]

!testme

[yunohost-bot]

May the CI gods be with you!