Ruby

merge revision(s) e04146129ec6898dd6a9739dad2983c6e9b68056, d5080f6e8b77364483ff6727b1065e45e180f05d: [Backport #20292]

    [Bug #20292] Truncate embedded string to new capacity

    Fix -Wsign-compare on String#initialize
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    ../string.c:1886:57: warning: comparison of integer expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘long int’ [-Wsign-compare]
     1886 |                 if (STR_EMBED_P(str)) RUBY_ASSERT(osize <= str_embed_capa(str));
          |                                                         ^~