olm_pk_decrypt: Ensure inputs are of correct length.

5 jobs for base64-decoding-fixes in 2 minutes and 12 seconds (queued for 23 seconds)
Status Job ID Name Coverage
  Build
passed build:lib #15624
docker

00:01:18

 
  Test
passed test:lib #15625
docker

00:00:53

 
  Trigger
passed trigger:android

passed trigger:javascript

passed trigger:python