* .guix-authorizations: Add leoprikler to the committers.

* .guix-authorizations: Add jonsger to the committers.

* .guix-authorizations: Add m1gu3l to the committers.

* .guix-authorizations: Add planglois.

* .guix-authorizations: Add fingerprint for brettgilio.

* .guix-authorizations: Remove key of David Craven, who left the project
in 2017, and Federico Beffa, whose last commit was in Feb. 2017.

* .guix-authorizations: Remove old keys of dvc, efraim, and janneke.

* .guix-authorizations: Remove key "DFC0 C7F7 9EE6 0CA7 AE55  5E19 6722
43C4 A03F 0EEE" (Brett Gilio).  See
<https://lists.gnu.org/archive/html/guix-devel/2020-06/msg00323.html>.

* .guix-authorizations: Add fingerprint for bricewge.

* .guix-authorizations: Add all the currently authorized committers.

* .guix-authorizations: New file.