Bump postcard from 1.0.10 to 1.1.1 in /pixie-server

Bumps [postcard](https://github.com/jamesmunns/postcard) from 1.0.10 to 1.1.1.
- [Release notes](https://github.com/jamesmunns/postcard/releases)
- [Changelog](https://github.com/jamesmunns/postcard/blob/main/CHANGELOG.md)
- [Commits](jamesmunns/postcard@v1.0.10...postcard/v1.1.1)

---
updated-dependencies:
- dependency-name: postcard
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pixie-server/Cargo.lock

@@ -14,7 +14,7 @@ libc = "0.2.150"
 log = "0.4.20"
 macaddr = { version = "1.0.1", features = ["serde"] }
 mktemp = "0.5.1"
-postcard = { version = "1.0.8", default-features = false, features = ["alloc"] }
+postcard = { version = "1.1.1", default-features = false, features = ["alloc"] }
 serde = "1.0.193"
 serde_derive = "1.0.193"
 serde_yaml = "0.9"