Update dependency brakeman to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
brakeman (source, changelog)	6.2.2 -> 7.0.0

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Release Notes

presidentbeef/brakeman (brakeman)

v7.0.0

Compare Source

• Always warn about deserializing from Marshal
• Output originalBaseUriIds for SARIF format report
• Default to using Prism parser if available (disable with --no-prism)
• Update terminal-table version to use latest
• Update eval check to be a little noisier
• Fix array/hash unknown index handling
• Disable following symbolic links by default, re-enable with --follow-symlinks
• Add step (and timing) for finding files
• Add CSV library as explicit dependency for Ruby 3.4 support
• Major changes to how rescanning works
• Raise minimum Ruby version to 3.1
• Fix hardcoded globally excluded paths
• Remove updated entry in Brakeman ignore files (Toby Hsieh)
• Fix recursion when handling multiple assignment expressions

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