Fix some es lint issues with npx eslint@8 --ext .js --resolve-plugins… #312

Job	Run time
tests / Install LocalGov Drupal (3.x, ~10.0, 8.1)	1m 28s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.2)	1m 36s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.3)	2m 6s
tests / Install LocalGov Drupal (3.x, ~10.0, 8.4)	1m 27s
tests / Install LocalGov Drupal (3.x, ~11.0, 8.3)	1m 33s
tests / Install LocalGov Drupal (3.x, ~11.0, 8.4)	1m 36s
tests / ESLint javascript checks (3.x, ~10.0, 8.4)	43s
tests / ESLint yaml checks (3.x, ~10.0, 8.4)	46s
tests / PHP static analysis checks (3.x, ~10.0, 8.4)	28s
tests / PHP coding standards checks (3.x, ~10.0, 8.4)	17s
tests / Stylelint checks (3.x, ~10.0, 8.4)	45s
tests / PHPUnit tests (3.x, ~10.0, 8.1)	2m 45s
tests / PHPUnit tests (3.x, ~10.0, 8.2)	2m 40s
tests / PHPUnit tests (3.x, ~10.0, 8.3)	2m 42s
tests / PHPUnit tests (3.x, ~10.0, 8.4)	2m 47s
tests / PHPUnit tests (3.x, ~11.0, 8.3)	2m 56s
tests / PHPUnit tests (3.x, ~11.0, 8.4)	2m 55s
	29m 30s

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