This specification causes a requirement for "later than minor version 60 of R major version 3" which is probably not intended - this probably was meant to be minor version 6 (aka R 3.6.0)
This should probably be amended, and GHA should probably also rcmdcheck the minimum listed R version (3.6.0)
https://github.com/jthomasmock/gtExtras/blob/d24a6ab037f24d2e7ae6e0016b53250810ecd35c/DESCRIPTION#L50
This specification causes a requirement for "later than minor version 60 of R major version 3" which is probably not intended - this probably was meant to be minor version 6 (aka R 3.6.0)
This should probably be amended, and GHA should probably also rcmdcheck the minimum listed R version (3.6.0)