Upgrade to Ruby 3.4

[LocoDelAssembly]

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[LocoDelAssembly]

Justification for 1922b09

3.4.2 :001 > a = {
3.4.2 :002 >   a: 'test' \
3.4.2 :003 >      'test',
3.4.2 :004 >   b: 'testing' \
3.4.2 :005 >      'test',
3.4.2 :006 >   c: 'test',
3.4.2 :007 >   d: 'a test',
3.4.2 :008 >   f: 'test' \
3.4.2 :009 >      'test'
3.4.2 :010 > }
3.4.2 :011 > 
3.4.2 :012 > a.map { |k,v| v.frozen? }
 => [true, true, false, false, false]