Bump regex from 1.3.9 to 1.4.0 (#34)

Bumps [regex](https://github.com/rust-lang/regex) from 1.3.9 to 1.4.0.
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/regex/compare/1.3.9...1.4.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Cargo.lock

@@ -969,9 +969,9 @@ checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
 [[package]]
 name = "regex"
-version = "1.3.9"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
+checksum = "36f45b719a674bf4b828ff318906d6c133264c793eff7a41e30074a45b5099e2"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -981,9 +981,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.18"
+version = "0.6.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
+checksum = "c17be88d9eaa858870aa5e48cc406c206e4600e983fc4f06bbe5750d93d09761"
 
 [[package]]
 name = "remove_dir_all"

Cargo.toml

@@ -14,7 +14,7 @@ tokio = { version = "0.2", features = ["full"] }
 serde_json = "1.0.58"
 log = "0.4"
 pretty_env_logger = "0.4.0"
-regex = "1.3.9"
+regex = "1.4.0"
 rust-crypto = "^0.2"
 sled = "0.34.4"
 clap = "2.33.3"