Bump structopt from 0.3.23 to 0.3.26

Bumps [structopt](https://github.com/TeXitoi/structopt) from 0.3.23 to 0.3.26.
- [Release notes](https://github.com/TeXitoi/structopt/releases)
- [Changelog](https://github.com/TeXitoi/structopt/blob/master/CHANGELOG.md)
- [Commits](TeXitoi/structopt@v0.3.23...v0.3.26)

---
updated-dependencies:
- dependency-name: structopt
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -25,7 +25,7 @@ bitflags = "1.0"
 driver-pal = { version = "0.8.0-alpha.6", default_features = false }
 
 serde = { version = "1.0", default-features = false, features = ["derive"], optional = true }
-structopt = { version = "0.3.21", optional = true }
+structopt = { version = "0.3.26", optional = true }
 simplelog = { version = "0.8.0", optional = true }
 humantime = { version = "2.0.0", optional = true }