docker-compose: use toml config file for scheduler-lava

Commit 6169407 ("docker-compose: provide kernelci.toml as settings
file") changed all services to use `kernelci.toml` instead of
`kernelci.conf`, except for `scheduler-lava`. This leads to the
corresponding container to exit with a "File not found" error unless
a `kernelci.conf` file is also present in the `config/` dir.

Signed-off-by: Arnaud Ferraris <[email protected]>

docker-compose.yaml

@@ -61,7 +61,7 @@ services:
     container_name: 'kernelci-pipeline-scheduler-lava'
     command:
       - './pipeline/scheduler.py'
-      - '--settings=${KCI_SETTINGS:-/home/kernelci/config/kernelci.conf}'
+      - '--settings=${KCI_SETTINGS:-/home/kernelci/config/kernelci.toml}'
       - 'loop'
       - '--runtimes'
       - 'lava-collabora'