Apply suggestions from code review #6489

Job	Run time
Build - 2019	4m 50s
cancel-previous-workflow	2s
Build - 2020	5m 21s
Build - 2021	3m 8s
UPM Package validation	1h 0m 11s
sdk (Android, ubuntu-latest) / build	11s
sdk (Linux, ubuntu-20.04) / build	4s
sdk (Windows, windows-latest) / build	13s
${{ matrix.unity-version }} Prepare Smoke Test	0s
${{ matrix.unity-version }} ${{ matrix.os }} Run Smoke Test	0s
${{ matrix.unity-version }} ${{ matrix.platform }} Build Smoke Test	0s
${{ matrix.unity-version }} ${{ matrix.platform }} Run Smoke Test	0s
${{ matrix.unity-version }} ${{ matrix.platform }} Compile Smoke Test	0s
${{ matrix.unity-version }} iOS ${{ matrix.ios }} Run Smoke Test	0s
${{ matrix.unity-version }} Android ${{ matrix.api-level }} Run Smoke Test	0s
	1h 14m 0s

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