Replace individual actions with PHS checks action #6

Job	Run time
PHS-checks / Style / style	1m 38s
PHS-checks / Document / document	1m 30s
PHS-checks / R-CMD-check / windows-latest (release)	13m 56s
PHS-checks / R-CMD-check / ubuntu-latest (release)	13m 27s
PHS-checks / R-CMD-check / macos-latest (release)	8m 25s
PHS-checks / R-CMD-check / windows-latest (devel)	4m 14s
PHS-checks / R-CMD-check / ubuntu-latest (devel)	9m 51s
PHS-checks / R-CMD-check / ubuntu-latest (oldrel-1)	3m 55s
PHS-checks / R-CMD-check / ubuntu-latest (oldrel-2)	3m 55s
PHS-checks / R-CMD-check / windows-latest (3.6.1)	4m 0s
PHS-checks / R-CMD-check / windows-latest (4.0.1)	5m 45s
PHS-checks / R-CMD-check / ubuntu-latest (3.6.1)	3m 40s
PHS-checks / R-CMD-check / ubuntu-latest (4.0.2)	9m 14s
PHS-checks / R-CMD-check / ubuntu-latest (4.1.2)	13m 27s
PHS-checks / test-coverage	0s
	1h 36m 57s

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