feat(shs-6048): linting fixes #1586

Job	Run time
test_phpunit	1m 30s
set_sites	38s
lint_theme	35s
test_new_site	6m 50s
test_existing_site (aaai)	5m 32s
test_existing_site (creees)	7m 37s
test_existing_site (hs_fps)	5m 37s
test_existing_site (hs_sandbox)	1m 33s
test_existing_site (hsweb_referencetraditional)	5m 26s
test_existing_site (humanbiology)	6m 56s
test_existing_site (islamicstudies)	6m 54s
test_existing_site (mcs)	6m 6s
test_existing_site (sociology)	6m 53s
test_existing_site (southasia)	7m 25s
deploy_branch	0s
	1h 9m 32s

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