chore(deps): Bump headers from 0.3.8 to 0.3.9 (vectordotdev#18448)

Bumps [headers](https://github.com/hyperium/headers) from 0.3.8 to 0.3.9.
- [Commits](hyperium/headers@headers-v0.3.8...headers-v0.3.9)

---
updated-dependencies:
- dependency-name: headers
  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>

Cargo.toml

@@ -272,7 +272,7 @@ grok = { version = "2.0.0", default-features = false, optional = true }
 h2 = { version = "0.3.21", default-features = false, optional = true }
 hash_hasher = { version = "2.0.0", default-features = false }
 hashbrown = { version = "0.14.0", default-features = false, optional = true, features = ["ahash"] }
-headers = { version = "0.3.8", default-features = false }
+headers = { version = "0.3.9", default-features = false }
 hostname = { version = "0.3.1", default-features = false }
 http = { version = "0.2.9", default-features = false }
 http-serde = "1.1.3"

lib/vector-core/Cargo.toml

@@ -20,7 +20,7 @@ enumflags2 = { version = "0.7.7", default-features = false }
 float_eq = { version = "1.0", default-features = false }
 futures = { version = "0.3.28", default-features = false, features = ["std"] }
 futures-util = { version = "0.3.28", default-features = false, features = ["std"] }
-headers = { version = "0.3.8", default-features = false }
+headers = { version = "0.3.9", default-features = false }
 http = { version = "0.2.9", default-features = false }
 hyper-proxy = { version = "0.9.1", default-features = false, features = ["openssl-tls"] }
 indexmap = { version = "~2.0.0", default-features = false, features = ["serde", "std"] }