chore(deps): bump io.extendreality.zinnia.unity from 2.15.0 to 2.16.0

Bumps [io.extendreality.zinnia.unity](https://github.com/ExtendRealityLtd/Zinnia.Unity) from 2.15.0 to 2.16.0.
- [Release notes](https://github.com/ExtendRealityLtd/Zinnia.Unity/releases)
- [Changelog](https://github.com/ExtendRealityLtd/Zinnia.Unity/blob/master/CHANGELOG.md)
- [Commits](ExtendRealityLtd/Zinnia.Unity@v2.15.0...v2.16.0)

---
updated-dependencies:
- dependency-name: io.extendreality.zinnia.unity
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -31,7 +31,7 @@
         "url": "https://github.com/ExtendRealityLtd"
     },
     "dependencies": {
-        "io.extendreality.zinnia.unity": "2.15.0",
+        "io.extendreality.zinnia.unity": "2.16.0",
         "com.unity.xr.management": "4.0.1"
     },
     "files": [