Auto merge of #23289 - CYBAI:regex-1.1, r=jdm

Update regex to 1.1

I just found the `aho-corasick` dependency is still `0.6.9` and then I found `regex` depends on it.

I remember there's a rewrite of `aho-corasick` at BurntSushi/aho-corasick@e8493baf54 to improve itself.

---

- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because it just updates `regex` crate

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/23289)
<!-- Reviewable:end -->

components/style/Cargo.toml

@@ -80,6 +80,6 @@ void = "1.0.2"
 lazy_static = "1"
 log = "0.4"
 bindgen = { version = "0.49", optional = true, default-features = false }
-regex = {version = "1.0", optional = true}
+regex = {version = "1.1", optional = true}
 walkdir = "2.1.4"
 toml = {version = "0.4.5", optional = true, default-features = false}