build(deps): bump subtle from 2.5.0 to 2.6.1

[dependabot[bot]]

Bumps subtle from 2.5.0 to 2.6.1.

Changelog

Sourced from subtle's changelog.

Changelog

Entries are listed in reverse chronological order.

Commits

• 5457b54 Bump version to 2.6.1.
• 03139c0 Correct CI badge branch name.
• f1f8e53 Merge remote-tracking branch 'tarcieri/restore-1.60-msrv' into develop
• 1fa4054 CI: use 1.60 as the MSRV
• 7e504bd Restore 1.60 MSRV and fix build
• 6dcd695 Merge branch 'main' into develop
• 369e746 Merge branch 'release/2.6' into main
• 1da93bf Bump version to 2.6.
• 1da204b Update copyright year.
• 3e8d92b Merge remote-tracking branch 'tarcieri/black-box' into develop
• Additional commits viewable in compare view

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