Set environment variable SYMFONY_DEPRECATIONS_HELPER for phpunit #44

Job	Run time
Install LocalGov Microsites (4.x, ~10.0, 8.1)	1m 10s
Install LocalGov Microsites (4.x, ~10.0, 8.1)	1m 25s
Install LocalGov Microsites (4.x, ~10.0, 8.1)	1m 2s
Install LocalGov Microsites (4.x, ~10.0, 8.2)	1m 7s
Install LocalGov Microsites (4.x, ~10.0, 8.2)	54s
Install LocalGov Microsites (4.x, ~10.0, 8.2)	58s
PHPUnit tests (4.x, ~10.0, 8.1)	7m 15s
PHPUnit tests (4.x, ~10.0, 8.1)	8m 58s
PHPUnit tests (4.x, ~10.0, 8.1)	9m 29s
Coding standards checks (4.x, ~10.0, 8.1)	50s
Coding standards checks (4.x, ~10.0, 8.1)	51s
Coding standards checks (4.x, ~10.0, 8.1)	44s
PHPUnit tests (4.x, ~10.0, 8.2)	7m 31s
PHPUnit tests (4.x, ~10.0, 8.2)	8m 41s
PHPUnit tests (4.x, ~10.0, 8.2)	9m 29s
Deprecated code checks (4.x, ~10.0, 8.1)	40s
Deprecated code checks (4.x, ~10.0, 8.1)	37s
Deprecated code checks (4.x, ~10.0, 8.1)	32s
Coding standards checks (4.x, ~10.0, 8.2)	53s
Coding standards checks (4.x, ~10.0, 8.2)	1m 4s
Coding standards checks (4.x, ~10.0, 8.2)	42s
Deprecated code checks (4.x, ~10.0, 8.2)	45s
Deprecated code checks (4.x, ~10.0, 8.2)	37s
Deprecated code checks (4.x, ~10.0, 8.2)	32s
	1h 6m 46s

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