Bump savon from 2.14.0 to 2.15.0 in /back

[dependabot[bot]]

Bumps savon from 2.14.0 to 2.15.0.

Release notes

Sourced from savon's releases.

v2.15.0

What's Changed

• Drop support for ruby 2.7 and below. Added Ruby 3.2 and 3.3 to test matrix.
• Allows wasabi v5.x, which now supports faraday

New Contributors

• @​sarahsehr made their first contribution in savonrb/savon#997

Full Changelog: https://github.com/savonrb/savon/compare/v2.14.0...v2.15.0

Changelog

Sourced from savon's changelog.

2.15.0 (2024-02-10)

• Drop support for ruby 2.7 and below. Added Ruby 3.2 and 3.3 to test matrix.
• Allows wasabi v5.x, which now supports faraday

Commits

• cf187ed allow wasabi 5.x, ensure httpi < 5
• 86c7097 use checkoutv4 in tests
• d7dbad6 prepare 2.15.0
• 13c4d7d test ruby 3.3, drop 2.7
• 8335f46 gemspec: Require wasabi version that supports Ruby 3 (#997)
• e862e70 add ruby 3.2 to test matrix
• b3f6536 allow wasabi 4.x, rubygems mfa, default ruby devcontainer config
• See full diff in compare view

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