chore(deps): bump h2 from 0.4.11 to 0.4.12

Bumps [h2](https://github.com/hyperium/h2) from 0.4.11 to 0.4.12.
- [Release notes](https://github.com/hyperium/h2/releases)
- [Changelog](https://github.com/hyperium/h2/blob/master/CHANGELOG.md)
- [Commits](hyperium/h2@v0.4.11...v0.4.12)

---
updated-dependencies:
- dependency-name: h2
  dependency-version: 0.4.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -26,7 +26,7 @@ ed25519-dalek = { version = "2.2.0", features = ["rand_core"] }
 fraction = { version = "0.15.1", default-features = false }
 futures-core = "0.3.31"
 # Transitive dependency of tonic 0.12
-h2 = "0.4.11"
+h2 = "0.4.12"
 hedera-proto = { path = "./protobufs", version = "0.18.0", features = ["time_0_3", "fraction"] }
 hex = "0.4.3"
 hmac = "0.12.1"