Update keyring/boklm.gpg for new subkeys

My old subkeys expired and I created new ones.

assigned to @boklm

mentioned in merge request !730 (merged)

added Build System Task labels

added Doing label

closed with merge request !730 (merged)

Backported to maint-12.0 as 0bfd0b01, and to maint-12.0-mullvad as 747e1261.

marked this issue as related to #40865 (closed)

mentioned in issue #40894 (closed)

mentioned in commit 6e2c33ed

mentioned in commit 16785a1b