Bump sinatra from 1.4.4 to 2.2.3 in /example/webapp/sinatra

[dependabot[bot]]

Bumps sinatra from 1.4.4 to 2.2.3.

Changelog

Sourced from sinatra's changelog.

2.2.3 / 2022-11-25

• Fix: Escape filename in the Content-Disposition header. #1841 by Kunpei Sakai

• Fix: fixed ReDoS for Rack::Protection::IPSpoofing. #1823 by @​ooooooo-q

2.2.2 / 2022-07-23

• Update mustermann dependency to version 2.

2.2.1 / 2022-07-15

• Fix JRuby regression by using ruby2_keywords for delegation. #1750 by Patrik Ragnarsson

• Add JRuby to CI. #1755 by Karol Bucek

2.2.0 / 2022-02-15

• Breaking change: Add #select, #reject and #compact methods to Sinatra::IndifferentHash. If hash keys need to be converted to symbols, call #to_h to get a Hash instance first. #1711 by Olivier Bellone

• Handle EOFError raised by Rack and return Bad Request 400 status. #1743 by tamazon

• Minor refactors in base.rb. #1640 by ceclinux

• Add escaping to the static 404 page. #1645 by Chris Gavin

• Remove detect_rack_handler method. #1652 by ceclinux

• Respect content type set in superclass before filter. Fixes #1647 #1649 by Jordan Owens

• Revert "Use prepend instead of include for helpers. #1662 by namusyaka

• Fix usage of inherited Sinatra::Base classes keyword arguments. Fixes #1669 #1670 by Cadu Ribeiro

• Reduce RDoc generation time by not including every README. Fixes #1578 #1671 by Eloy Pérez

• Add support for per form csrf tokens. Fixes #1616 #1653 by Jordan Owens

• Update MAINTENANCE.md with the stable branch status. #1681 by Fredrik Rubensson

• Validate expanded path matches public_dir when serving static files. #1683 by cji-stripe

• Fix Delegator to pass keyword arguments for Ruby 3.0. #1684 by andrewtblake

• Fix use with keyword arguments for Ruby 3.0. #1701 by Robin Wallin

• Fix memory leaks for proc template. Fixes #1704 #1719 by Slevin

• Remove unnecessary test_files from the gemspec. #1712 by Masataka Pocke Kuwabara

... (truncated)

Commits

• 0bdb254 2.2.3 release
• 43df742 Remove rdoc
• 580b271 fix ReDoS
• 9031a44 Pin haml to v5
• 0455c8e Pin Puma to v5
• 1808bcd escape filename in the Content-Disposition header
• ee12b18 Note potential breaking change in 2.2.0 release
• 9c1ed08 Update CHANGELOG.md
• a2b8243 2.2.2 release
• 6534799 Update mustermann to ~> 2.0
• Additional commits viewable in compare view

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