Feat: Reduce dependencies #19

Job	Run time
Check NN version / macos-latest (R 4.3.1, 2023-10-25)	2m 28s
Check current version / macos-latest (release)	3m 12s
Check NN version / macos-latest (R 4.4.1, 2024-08-06)	2m 48s
Coverage report / test-coverage-internal	1m 39s
Check NN version / windows-latest (R 4.3.1, 2023-10-25)	7m 35s
Check current version / windows-latest (release)	3m 24s
Check current version / ubuntu-latest (devel)	2m 42s
Check NN version / windows-latest (R 4.4.1, 2024-08-06)	2m 28s
Check NN version / ubuntu-latest (R 4.3.1, 2023-10-25)	24m 25s
Check current version / ubuntu-latest (release)	2m 30s
Check NN version / ubuntu-latest (R 4.4.1, 2024-08-06)	22m 28s
Check current version / ubuntu-latest (oldrel-1)	2m 2s
Pkgdown site / pkgdown	2m 25s
Megalinter / MegaLinter	2m 33s
	1h 22m 39s

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