Bump syn from 2.0.102 to 2.0.103 in /src/_bcrypt (#1036)

Bumps [syn](https://github.com/dtolnay/syn) from 2.0.102 to 2.0.103.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/2.0.102...2.0.103)

---
updated-dependencies:
- dependency-name: syn
  dependency-version: 2.0.103
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/_bcrypt/Cargo.lock

@@ -311,9 +311,9 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "syn"
-version = "2.0.102"
+version = "2.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6397daf94fa90f058bd0fd88429dd9e5738999cca8d701813c80723add80462"
+checksum = "e4307e30089d6fd6aff212f2da3a1f9e32f3223b1f010fb09b7c95f90f3ca1e8"
 dependencies = [
  "proc-macro2",
  "quote",