Bump serde from 1.0.128 to 1.0.129 in /src/proxy-manager (#1176)

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.128 to 1.0.129.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.128...v1.0.129)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  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/proxy-manager/Cargo.lock

@@ -1136,9 +1136,9 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.128"
+version = "1.0.129"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1056a0db1978e9dbf0f6e4fca677f6f9143dc1c19de346f22cac23e422196834"
+checksum = "d1f72836d2aa753853178eda473a3b9d8e4eefdaf20523b919677e6de489f8f1"
 dependencies = [
  "serde_derive",
 ]
@@ -1157,9 +1157,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.128"
+version = "1.0.129"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13af2fbb8b60a8950d6c72a56d2095c28870367cc8e10c55e9745bac4995a2c4"
+checksum = "e57ae87ad533d9a56427558b516d0adac283614e347abf85b0dc0cbbf0a249f3"
 dependencies = [
  "proc-macro2 1.0.28",
  "quote 1.0.9",