Merge branch 'mesa' into 'master'

jobs: Build mesa from official repo

See merge request Librem5/deb-build-jobs!40

jobs.yml

@@ -39,7 +39,7 @@ librem5-devkit-tools:
   dists: ['buster']
   branch: master
 mesa:
-  url: https://source.puri.sm/guido.gunther/mesa.git
+  url: https://source.puri.sm/Librem5/mesa.git
   archs: ['aarch64']
   branch: 'pureos/purple'
 mfgtools: