Bump regex from 1.4.3 to 1.4.6

Bumps [regex](https://github.com/rust-lang/regex) from 1.4.3 to 1.4.6.
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](rust-lang/regex@1.4.3...1.4.6)

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

client/cli/Cargo.toml

@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 log = "0.4.11"
-regex = "1.4.2"
+regex = "1.4.6"
 tokio = { version = "0.2.21", features = [ "signal", "rt-core", "rt-threaded", "blocking" ] }
 futures = "0.3.9"
 fdlimit = "0.2.1"

client/tracing/Cargo.toml

@@ -20,7 +20,7 @@ lazy_static = "1.4.0"
 log = { version = "0.4.8" }
 once_cell = "1.4.1"
 parking_lot = "0.11.1"
-regex = "1.4.2"
+regex = "1.4.6"
 rustc-hash = "1.1.0"
 serde = "1.0.101"
 serde_json = "1.0.41"

primitives/core/Cargo.toml

@@ -27,7 +27,7 @@ base58 = { version = "0.1.0", optional = true }
 rand = { version = "0.7.3", optional = true, features = ["small_rng"] }
 substrate-bip39 = { version = "0.4.2", optional = true }
 tiny-bip39 = { version = "0.8", optional = true }
-regex = { version = "1.4.2", optional = true }
+regex = { version = "1.4.6", optional = true }
 num-traits = { version = "0.2.8", default-features = false }
 zeroize = { version = "1.2.0", default-features = false }
 secrecy = { version = "0.7.0", default-features = false }