chore: update dependencies.

Now that rust-lang/regex#1086 was merged, I can stop depending on my own clone and can rely on the official implementation of `regex-syntax`.

Cargo.toml

@@ -6,13 +6,7 @@ homepage = "https://github.com/VirusTotal/yara-x"
 repository = "https://github.com/VirusTotal/yara-x"
 readme = "README.md"
 license = "MIT"
-keywords = [
-    "pattern-matching",
-    "cybersecurity",
-    "forensics",
-    "malware",
-    "yara"
-]
+keywords = ["pattern-matching", "cybersecurity", "forensics", "malware", "yara"]
 
 # When updating rust-version also update MSRV in:
 #   .github/workflows/tests.yaml
@@ -86,8 +80,8 @@ protobuf-json-mapping = { git = "https://github.com/plusvic/rust-protobuf.git",
 protobuf-parse = { git = "https://github.com/plusvic/rust-protobuf.git", rev = "b484d8a7" }
 protobuf-support = { git = "https://github.com/plusvic/rust-protobuf.git", rev = "b484d8a7" }
 rayon = "1.5.3"
-regex-syntax = { git = "https://github.com/plusvic/regex.git", rev = "50a708b" }
-regex-automata = { git = "https://github.com/plusvic/regex.git", rev = "50a708b" }
+regex-syntax = "0.8.3"
+regex-automata = "0.4.6"
 roxmltree = "0.19.0"
 rustc-hash = "1.1.0"
 smallvec = "1.13.2"
@@ -115,4 +109,4 @@ zip = "0.6.2"
 [profile.release-lto]
 inherits = "release"
 lto = true
-codegen-units = 1
+codegen-units = 1