ci/lava: Fix pytest not passing farm value

This was throwing an exception as a required argument was missing.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30978>

.gitlab-ci/tests/test_lava_job_submitter.py

@@ -75,6 +75,7 @@ def lava_job_submitter(
             boot_method="test_boot",
             ci_project_dir="test_dir",
             device_type="test_device",
+            farm="test_farm",
             job_timeout_min=1,
             structured_log_file=tmp_file,
         )

.gitlab-ci/tests/utils/test_lava_job_definition.py

@@ -56,6 +56,7 @@ def job_submitter_factory(mode: Literal["UBOOT", "FASTBOOT"], shell_file):
         boot_method=boot_method,
         ci_project_dir="/ci/project/dir",
         device_type=device_type,
+        farm="test_farm",
         dtb_filename="my_dtb_filename",
         first_stage_init=shell_file,
         job_timeout_min=job_timeout_min,