CI: FIx the clippy cache.

7 jobs for master in 69 minutes and 2 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
passed #39882
flatpak

00:33:51

passed #40368
rust:stable

00:27:42

failed #39908
rust:stable

00:07:19

failed #39907
rust:stable

00:08:13

failed #39881
rust:stable

00:09:03

 
  Lint
passed #39884
clippy

00:07:17

passed #39883
rustfmt

00:00:24