build(deps): bump regex from 1.4.3 to 1.4.4

Bumps [regex](https://github.com/rust-lang/regex) from 1.4.3 to 1.4.4.
- [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/1.4.3...1.4.4)

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

Cargo.lock

@@ -674,12 +674,6 @@ version = "0.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9a7ab5d64814df0fe4a4b5ead45ed6c5f181ee3ff04ba344313a6c80446c5d4"
 
-[[package]]
-name = "once_cell"
-version = "1.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
-
 [[package]]
 name = "openssl-sys"
 version = "0.9.60"
@@ -890,14 +884,13 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.4.3"
+version = "1.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
+checksum = "54fd1046a3107eb58f42de31d656fee6853e5d276c455fd943742dce89fc3dd3"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
@@ -1193,15 +1186,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "thread_local"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8018d24e04c95ac8790716a5987d0fec4f8b27249ffa0f7d33f1369bdfb88cbd"
-dependencies = [
- "once_cell",
-]
-
 [[package]]
 name = "tinyvec"
 version = "1.1.1"