Add (file) IO checks #301

Job	Run time
R Package Checks / docs-check / docs-check	1m 11s
R Package Checks / codecov / test-coverage (ubuntu-latest)	1m 46s
R Package Checks / check-R-updates / updated-files	2s
R Package Checks / deps-main-check / deps-main	1m 21s
R Package Checks / codecov / test-coverage (windows-latest)	2m 51s
R Package Checks / codecov / test-coverage (macOS-latest)	1m 41s
R Package Checks / lintr / lint	1m 23s
R Package Checks / r-cmd-check / macOS-latest (release)	1m 34s
R Package Checks / r-cmd-check / windows-latest (release)	3m 52s
R Package Checks / revdeps-check / revdep RMI-PACTA/workflow.pacta	2m 43s
R Package Checks / r-cmd-check / windows-latest (4.1)	4m 19s
R Package Checks / revdeps-check / revdep RMI-PACTA/workflow.pacta.report	3m 9s
R Package Checks / r-cmd-check / ubuntu-latest (release)	2m 15s
R Package Checks / revdeps-check / revdep RMI-PACTA/workflow.pacta.webapp	3m 5s
R Package Checks / r-cmd-check / ubuntu-latest (devel)	3m 16s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-1)	2m 42s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-2)	2m 12s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-3)	2m 5s
R Package Checks / r-cmd-check / ubuntu-latest (oldrel-4)	1m 58s
R Package Checks / version-check / version-check	56s
	44m 21s

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