Bump structopt from 0.3.18 to 0.3.23

[dependabot[bot]]

Bumps structopt from 0.3.18 to 0.3.23.

Changelog

Sourced from structopt's changelog.

v0.3.23 (2021-08-30)

• Update minimal rust version to 1.46 because of bitflags 1.3
• Fixed a bug that occurs when the type of map becomes ambiguous.
• Add support for skip for enum variant subcommands

v0.3.22 (2021-07-04)

• Add support for generics in derive

v0.3.21 (2020-11-30)

• Fixed another breakage when the struct is placed inside a macro_rules! macro.

v0.3.20 (2020-10-12)

• Fixed a breakage when the struct is placed inside a macro_rules! macro.

v0.3.19 (2020-10-08)

• Added StructOpt::from_args_safe as a shortcut for StructOpt::from_iter_safe(std::env::args_os()).
• Some links in documentation have been corrected.

Commits

• 88e5402 v0.3.23
• 6d922d1 Add skip attribute support for enum variants (#494)
• 7fef417 Fix the problem where the build fails due to the ambiguous type of map (#491)
• 4a31aae Bump MSRV to 1.46 because of bitflags 1.3
• 4b09bd7 correct example
• 171bc1d fix test on new stable
• 9004565 fix for rust 1.36
• 7ad03a0 cargo fmt
• da9ac17 Migrate to travis-ci.com
• 14589f1 Fix warnings.
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot[bot]]

Superseded by #82.