Bump socket2 from 0.4.2 to 0.4.4

Bumps [socket2](https://github.com/rust-lang/socket2) from 0.4.2 to 0.4.4.
- [Release notes](https://github.com/rust-lang/socket2/releases)
- [Changelog](https://github.com/rust-lang/socket2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/socket2/compare/v0.4.2...v0.4.4)

---
updated-dependencies:
- dependency-name: socket2
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Cargo.lock

@@ -906,9 +906,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.111"
+version = "0.2.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e167738f1866a7ec625567bae89ca0d44477232a4f7c52b1c7f2adc2c98804f"
+checksum = "0a8d982fa7a96a000f6ec4cfe966de9703eccde29750df2bb8949da91b0e818d"
 
 [[package]]
 name = "lock_api"
@@ -1667,9 +1667,9 @@ dependencies = [
 
 [[package]]
 name = "socket2"
-version = "0.4.2"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dc90fe6c7be1a323296982db1836d1ea9e47b6839496dde9a541bc496df3516"
+checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
 dependencies = [
  "libc",
  "winapi",