Bump arc-swap from 1.5.1 to 1.6.0

Bumps [arc-swap](https://github.com/vorner/arc-swap) from 1.5.1 to 1.6.0.
- [Release notes](https://github.com/vorner/arc-swap/releases)
- [Changelog](https://github.com/vorner/arc-swap/blob/master/CHANGELOG.md)
- [Commits](vorner/arc-swap@v1.5.1...v1.6.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -83,7 +83,7 @@ cfg-if = "1"
 pin-project = "1.0"
 once_cell = "1.15"
 thiserror = "1.0"
-arc-swap = "1.5"
+arc-swap = "1.6"
 
 spin = { version = "0.9" }
 lru_time_cache = "0.11"

crates/shadowsocks-service/Cargo.toml

@@ -69,7 +69,7 @@ tokio = { version = "1.9.0", features = ["io-util", "macros", "net", "parking_lo
 tokio-tfo = "0.2.0"
 
 trust-dns-resolver = { version = "0.22", optional = true }
-arc-swap = { version = "1.5", optional = true }
+arc-swap = { version = "1.6", optional = true }
 notify = { version = "5.0.0-pre.15", optional = true }
 
 aes = { version = "0.8", optional = true }