Feature/remove tibble

[Ilia-Kosenkov]

Overtaking #433 to slightly speed up things

[CGMossa]

Specifying the rtools version in the work flow file is not necessary. I mistakenly thought it was necessary to do so.

[codecov]

Codecov Report

Attention: Patch coverage is 94.91525% with 3 lines in your changes missing coverage. Please review.

Project coverage is 83.14%. Comparing base (0c61cfd) to head (bcd13dd).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
R/source.R	0.00%	3 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
R/cran-compliance.R	83.78% <100.00%> (ø)
R/find_exports.R	100.00% <100.00%> (ø)
R/function_options.R	92.18% <100.00%> (ø)
R/sanitize_code.R	98.92% <100.00%> (+0.02%)	⬆️
R/source.R	75.75% <0.00%> (-0.67%)	⬇️

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