build(deps): bump socket2 from 0.3.18 to 0.3.19

Bumps [socket2](https://github.com/alexcrichton/socket2-rs) from 0.3.18 to 0.3.19.
- [Release notes](https://github.com/alexcrichton/socket2-rs/releases)
- [Commits](https://github.com/alexcrichton/socket2-rs/compare/v0.3.18...v0.3.19)

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

Cargo.lock

@@ -1631,9 +1631,9 @@ dependencies = [
 
 [[package]]
 name = "socket2"
-version = "0.3.18"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97e0e9fd577458a4f61fb91fcb559ea2afecc54c934119421f9f5d3d5b1a1057"
+checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",