feat: support Ruby 3.4.1 #943

Job	Run time
build-gem	22s
Use gem to package fontist windows-latest Ruby 3.2.6 CC gcc	24m 24s
Use gem to package metanorma macos-13 Ruby 3.2.6 CC clang	22m 59s
Use gem to package metanorma ubuntu-20.04 Ruby 3.2.6 CC clang-12	18m 0s
Use gem to package metanorma alpine:3.17 Ruby 3.2.6 CC gcc	24m 12s
Use gem to package fontist macos-13 Ruby 3.2.6 CC clang	23m 23s
Use gem to package fontist ubuntu-20.04 Ruby 3.2.6 CC clang-12	16m 47s
Use gem to package fontist alpine:3.17 Ruby 3.2.6 CC gcc	23m 35s
Use gem to package metanorma macos-14 Ruby 3.2.6 CC clang	10m 38s
Use gem to package fontist macos-14 Ruby 3.2.6 CC clang	11m 5s
cross-test on ubuntu-22.04	1s
cross-test on ubuntu-24.04	1s
Release gem	1s
	2h 55m 28s

Provide feedback