bump patch for read-fonts, write-fonts and skrifa

[anthrotype]

     Changes for read-fonts from read-fonts-v0.15.1 to 0.15.2
             5ecb3e4 bump patch for read-fonts, write-fonts and skrifa
             74bdb79 [read-fonts] fix ClassDefFormat2::get() (#755)
             2cd4ac5 [clippy] Push the rock back up the hill
     Changes for write-fonts from write-fonts-v0.21.1 to 0.21.2
             5ecb3e4 bump patch for read-fonts, write-fonts and skrifa
             884a132 [write-fonts] Use stable sort_by_key when computing gvar shared tuples
             5476e99 [write-fonts/gvar] repro shared tuples unstable order
     Changes for skrifa from skrifa-v0.15.2 to 0.15.3
             5ecb3e4 bump patch for read-fonts, write-fonts and skrifa