Update dependency rouge to v4.5.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rouge (source, changelog)	4.3.0 -> 4.5.1

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Release Notes

rouge-ruby/rouge (rouge)

v4.5.1

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Comparison with the previous version

• JSON5 Lexer
  • Fix prerequisite dependency in JSON5 (#​2084 by Tan Le)

v4.5.0

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Comparison with the previous version

• General
  • Support multiple states when parsing rules (#​2078 by Tan Le)
• COBOL Lexer (NEW)
  • Add a lexer, tests and examples for COBOL (#​2067 by Bart Broere)
• Groovy Lexer
  • Recognize Nextflow files as Groovy files (#​2081 by Bond-009)
• INI Lexer
  • Add more extensions and mimetypes for INI lexer (#​2075 by Tan Le)
  • Default .cfg highlight to INI lexer (#​2074 by Tan Le)
• Javascript Lexer
  • Support private property identifier in JS lexer (#​2076 by Tan Le)
• JSON5 Lexer (NEW)
  • implement a json5 lexer (#​1561 by Jeanine Adkisson)
• Ruby Lexer
  • Recognize Thor files as Ruby files (#​2080 by Vitaly Slobodin)
• Terraform Lexer
  • Support special escape sequences in Terraform (#​2073 by Tan Le)

v4.4.0

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Comparison with the previous version

• Docker Lexer
  • Detect Containerfiles as Dockerfiles (#​2059 by Andrew Hills)
• Make Lexer
  • Handle else if statement in makefile (#​2063 by Tan Le)
• Mojo Lexer (NEW)
  • Add Mojo to list of supported language (#​2072 by Tan Le)
  • Fix NameError in the Mojo lexer in Ruby 2.7 (#​2068 by Bart Broere)
  • Mojo language highlighting support. (#​2050 by ivellapillil)
• P4 Lexer (NEW)
  • Add lexer for P4 (#​2049 by Ryan Goodfellow)

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