Bump strum_macros from 0.19.4 to 0.20.1

Bumps [strum_macros](https://github.com/Peternator7/strum) from 0.19.4 to 0.20.1.
- [Release notes](https://github.com/Peternator7/strum/releases)
- [Changelog](https://github.com/Peternator7/strum/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Peternator7/strum/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Cargo.lock

@@ -2009,7 +2009,7 @@ dependencies = [
  "serde",
  "serde_json",
  "strum 0.20.0",
- "strum_macros 0.19.4",
+ "strum_macros 0.20.1",
  "tokio-core",
  "tokio-timer",
  "toml",
@@ -3285,9 +3285,9 @@ dependencies = [
 
 [[package]]
 name = "strum_macros"
-version = "0.19.4"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e61bb0be289045cb80bfce000512e32d09f8337e54c186725da381377ad1f8d5"
+checksum = "ee8bc6b87a5112aeeab1f4a9f7ab634fe6cbefc4850006df31267f4cfb9e3149"
 dependencies = [
  "heck",
  "proc-macro2 1.0.24",

Cargo.toml

@@ -43,7 +43,7 @@ webbrowser = "0.5"
 clipboard = { version = "0.5", optional = true }
 url = "1.7"
 strum = "0.20.0"
-strum_macros = "0.19.4"
+strum_macros = "0.20.1"
 libc = "0.2"
 regex = "1"