build(deps): bump h2 from 0.4.3 to 0.4.4

Bumps [h2](https://github.com/hyperium/h2) from 0.4.3 to 0.4.4.
- [Release notes](https://github.com/hyperium/h2/releases)
- [Changelog](https://github.com/hyperium/h2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hyperium/h2/compare/v0.4.3...v0.4.4)

---
updated-dependencies:
- dependency-name: h2
  dependency-type: indirect
...

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

Cargo.lock

@@ -1278,9 +1278,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51ee2dd2e4f378392eeff5d51618cd9a63166a2513846bbc55f21cfacd9199d4"
+checksum = "816ec7294445779408f36fe57bc5b7fc1cf59664059096c65f905c1c61f58069"
 dependencies = [
  "bytes",
  "fnv",