build(deps): bump syn from 1.0.89 to 1.0.90

Bumps [syn](https://github.com/dtolnay/syn) from 1.0.89 to 1.0.90.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/1.0.89...1.0.90)

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

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

Cargo.lock

@@ -322,9 +322,9 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "syn"
-version = "1.0.89"
+version = "1.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea297be220d52398dcc07ce15a209fce436d361735ac1db700cab3b6cdfb9f54"
+checksum = "704df27628939572cd88d33f171cd6f896f4eaca85252c6e0a72d8d8287ee86f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -394,9 +394,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "vhost"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b56bf8f178fc500fe14505fca8b00dec76fc38f2304f461c8d9d7547982311d"
+checksum = "53567fd9ab820e4f3cc156f24146882fee3c365194c3e1dea74723265f27fc88"
 dependencies = [
  "bitflags",
  "libc",
@@ -443,9 +443,9 @@ dependencies = [
 
 [[package]]
 name = "vhost-user-backend"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bf4c8d6fc1560ac01051bd09b744887665b25adeb390bb7de6bbfb4d2ad8b12"
+checksum = "1490f2028d4f119b2292efe218b5f8cfc6471f039b53b6a6eb5d9513e964facc"
 dependencies = [
  "libc",
  "log",