Bump atty from 0.2.12 to 0.2.13

Bumps [atty](https://github.com/softprops/atty) from 0.2.12 to 0.2.13.
- [Release notes](https://github.com/softprops/atty/releases)
- [Changelog](https://github.com/softprops/atty/blob/master/CHANGELOG.md)
- [Commits](https://github.com/softprops/atty/compare/0.2.12...0.2.13)

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

Cargo.lock

@@ -23,7 +23,7 @@ dependencies = [
 
 [[package]]
 name = "atty"
-version = "0.2.12"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -230,7 +230,7 @@ name = "env_logger"
 version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "atty 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1644,7 +1644,7 @@ dependencies = [
 "checksum adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7e522997b529f05601e05166c07ed17789691f562762c7f3b987263d2dedee5c"
 "checksum aho-corasick 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "36b7aa1ccb7d7ea3f437cf025a2ab1c47cc6c1bc9fc84918ff449def12f5e282"
 "checksum arrayvec 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b8d73f9beda665eaa98ab9e4f7442bd4e7de6652587de55b2525e52e29c1b0ba"
-"checksum atty 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)" = "ecaaea69f52b3b18633611ec0007d188517d0366f47ff703d400fa6879d6f8d5"
+"checksum atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1803c647a3ec87095e7ae7acfca019e98de5ec9a7d01343f611cf3152ed71a90"
 "checksum autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "0e49efa51329a5fd37e7c79db4621af617cd4e3e5bc224939808d076077077bf"
 "checksum backtrace 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)" = "18b50f5258d1a9ad8396d2d345827875de4261b158124d4c819d9b351454fae5"
 "checksum backtrace-sys 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)" = "5b3a000b9c543553af61bc01cbfc403b04b5caa9e421033866f2e98061eb3e61"