fix(deps): bump tray-icon from 0.19.3 to 0.21.0

---
updated-dependencies:
- dependency-name: tray-icon
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -82,7 +82,7 @@ tempfile.workspace = true
 time.workspace = true
 tokio.workspace = true
 tracing.workspace = true
-tray-icon = { version = "0.19.2", default-features = false }
+tray-icon = { version = "0.21.0", default-features = false }
 url.workspace = true
 uuid.workspace = true
 which.workspace = true