ci: Install the correct rtd_theme package, not the documentation…

6 jobs for master in 16 minutes and 31 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #28394
freebsd
build:freebsd

00:09:20

 
  Test
passed #28395
freebsd
test:freebsd

00:01:40

 
  Packaging
passed #28397
docker
packaging:archlinux

00:05:03

failed #28396
docker allowed to fail
packaging:rpm

00:00:15

 
  Deploy
passed #28417
secure www
deploy:doc:latest

00:00:26

failed #28398
www secure
deploy:doc:latest

00:00:05

 
Name Stage Failure
failed
packaging:rpm Packaging
$ cd build/
/usr/bin/bash: line 107: cd: build/: No such file or directory
Running after_script
Uploading artifacts for failed job
Uploading artifacts...
WARNING: build/rpmbuild/RPMS: no matching files
WARNING: build/rpmbuild/SRPMS: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1