fix(deps): update rust crate backon to v1.4.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
backon	dependencies	minor	1.3.0 -> 1.4.0

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Release Notes

Xuanwo/backon (backon)

v1.4.0

Compare Source

What's Changed

• chore: Remove unnecessary optional feature selectors by @​wackazong in https://github.com/Xuanwo/backon/pull/167
• feat: Add std support for no-std without global rand seed by @​wackazong in https://github.com/Xuanwo/backon/pull/169
• feat: Add embassy-based sleeper for no_std by @​wackazong in https://github.com/Xuanwo/backon/pull/173
• feat: add Sleeper based on futures-timer by @​NumberFour8 in https://github.com/Xuanwo/backon/pull/154
• chore(deps): update embassy-time requirement from 0.3 to 0.4 by @​dependabot in https://github.com/Xuanwo/backon/pull/174
• feat: add explanation of Backoff trait to README by @​wackazong in https://github.com/Xuanwo/backon/pull/177
• feat: Mark builders to be const by @​Matt3o12 in https://github.com/Xuanwo/backon/pull/172
• ci: Skip all features tests on windows for now by @​Xuanwo in https://github.com/Xuanwo/backon/pull/179
• Bump to version 1.4.0 by @​Xuanwo in https://github.com/Xuanwo/backon/pull/180

New Contributors

• @​NumberFour8 made their first contribution in https://github.com/Xuanwo/backon/pull/154
• @​Matt3o12 made their first contribution in https://github.com/Xuanwo/backon/pull/172

Full Changelog: Xuanwo/backon@v1.3.0...v1.4.0

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