Update nb requirement from 0.1.3 to 1.0.0

[dependabot[bot]]

Updates the requirements on nb to permit the latest version.

Changelog

Sourced from nb's changelog.

v1.0.0 - 2020-07-07

Changed

• [breaking-change] The unstable feature and its code has been removed. This includes the macros try_nb! and await!.

v0.1.2 - 2019-04-21

Added

• Error<E> gained a map method that lets you transform the error in the Error::Other variant into a different type.

• Error<E> now implements the From<E> trait.

v0.1.1 - 2018-01-10

Fixed

• The await! macro now works when the expression $e mutably borrows self.

v0.1.0 - 2018-01-10

Initial release

Commits

• 075ecd3 Merge #33
• 56f6faa Prepare 1.0.0 release
• b9b7bed Merge #35
• c5e7bcd Add rust-embedded/hal to CODEOWNERS
• 8b497f0 Merge #30
• 4c2288b Avoid using unwrap in examples
• 54c8d81 Document current MSRV
• 0d8d936 Merge #32
• 4cb937c Update changelog
• f26820d Merge release 0.1.2 commit
• Additional commits viewable in compare view

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