chore: edit regex feature flags

Cargo.toml

@@ -10,18 +10,17 @@ version = "0.7.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+anyhow = "1.0.33"
+async-trait = "0.1.41"
 clap = "3.0.0-beta.2"
 colored = "2.0.0"
 confy = "0.4.0"
 dirs = "3.0.1"
+futures = "0.3.6"
 is-root = "0.1.2"
 lazy_static = "1.4.0"
-regex = "1.3.9"
+regex = {version = "1.4.1", default-features = false, features = ["std", "perf"]}
 serde = {version = "1.0.116", features = ["derive"]}
-# subprocess = "0.2.6"
-anyhow = "1.0.33"
-async-trait = "0.1.41"
-futures = "0.3.6"
 tokio = {version = "0.3.0", features = ["io-std", "io-util", "macros", "process", "rt-multi-thread", "sync"]}
 which = "4.0.2"