Ruby

Fix a fragile test

Dir.mktmpdir concatenates a random base-36 number separated by "-",
so may generate pathnames containing "-j4".

Update bundled gems list as of 2025-12-23

Bundle RBS 3.10.0 (#15701)

• Bundle RBS 3.10.0
• Unskip BigDecimal tests

[DOC] Fix example in Ruby::Box documentation

Added release note for RubyGems 4.0.3

Update default gems list at 1c3ef2719155b56f14bf734c82b26e [ci skip]

Merge RubyGems 4.0.3 and Bundler 4.0.3

Update default gems list at 8eaf6739fda591233b07f3ada7ed4e [ci skip]

[ruby/error_highlight] Bump version

https://github.com/ruby/error_highlight/commit/dc2dad6632

[DOC] Fix backticks in docs for Set#add