recipes: be explict about the git branch used
Follow OE-core (convert-srcuri.py) and update SRC_URI to be explict
about the git branch used to avoid issues when switching default from
master to main.
Update created with oe-core/scripts/contrib/convert-srcuri.py (see [0])
[0] - https://git.openembedded.org/openembedded-core/tree/scripts/contrib/convert-srcuri.py
Signed-off-by: Pierre-Jean Texier <pierre-jean.texier@lafon.fr>