Include LICENSE files into C++ SDK Assets (#4870)

Adds License files to C++ SDK assets

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### What

Resolves #4869 

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using newly built examples:
[app.rerun.io](https://app.rerun.io/pr/4870/index.html)
* Using examples from latest `main` build:
[app.rerun.io](https://app.rerun.io/pr/4870/index.html?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[app.rerun.io](https://app.rerun.io/pr/4870/index.html?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG

- [PR Build Summary](https://build.rerun.io/pr/4870)
- [Docs
preview](https://rerun.io/preview/14755ca66eec760f8a6fdb4a881879fa4bbaab2f/docs)
<!--DOCS-PREVIEW-->
- [Examples
preview](https://rerun.io/preview/14755ca66eec760f8a6fdb4a881879fa4bbaab2f/examples)
<!--EXAMPLES-PREVIEW-->
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)

scripts/ci/bundle_and_upload_rerun_cpp.py

@@ -135,6 +135,10 @@ def main() -> None:
             src="rerun_cpp/", dst=package_dir + "/", ignore=shutil.ignore_patterns("tests"), dirs_exist_ok=True
         )
 
+        logging.info("Copying LICENSE files…")
+        shutil.copy(src="LICENSE-APACHE", dst=package_dir + "/")
+        shutil.copy(src="LICENSE-MIT", dst=package_dir + "/")
+
         logging.info(f"Packaging {package_dir}.zip…")
         rerun_zip = shutil.make_archive(
             scratch_dir + "/" + package_name, "zip", root_dir=scratch_dir, base_dir=package_name