Update rubygems/rubygems from 3.4.7 to 3.4.8

The following dependencies have been updated by deps:

• rubygems/rubygems from 3.4.7 to 3.4.8

CHANGELOG

3.4.8 / 2023-03-08

Enhancements:

• Add TarReader::Entry#seek to seek within the tar file entry. Pull request #6390 by martinemde
• Avoid calling String#dup in Gem::Version#marshal_dump. Pull request #6438 by segiddins
• Remove hardcoded "master" branch references. Pull request #6425 by deivid-rodriguez
• [Experimental] Add gem exec command to run executables from gems that may or may not be installed. Pull request #6309 by segiddins
• Installs bundler 2.4.8 as a default gem.

Bug fixes:

• Fix installation error of same version of default gems with local installation. Pull request #6430 by hsbt
• Use proper memoized var name for Gem.state_home. Pull request #6420 by simi

Documentation:

• Switch supporting explanations to all Ruby Central. Pull request #6419 by indirect
• Update the link to OpenSource.org. Pull request #6392 by nobu