[skip ci]Bump Ruby bindings' version to 1.3.4 (#3461)

Author: KitaitiMakoto

bindings/ruby/whispercpp.gemspec

@@ -3,7 +3,7 @@ require_relative "extsources"
 Gem::Specification.new do |s|
   s.name    = "whispercpp"
   s.authors = ["Georgi Gerganov", "Todd A. Fisher"]
-  s.version = '1.3.3'
+  s.version = '1.3.4'
   s.description = %q{High-performance inference of OpenAI's Whisper automatic speech recognition (ASR) model via Ruby}
   s.email   = 'todd.fisher@gmail.com'
   s.extra_rdoc_files = ['LICENSE', 'README.md']