Use zstd when compressing profiles

It could be a good idea to use zstd when sharing profiles (to start with).
A wasm lib to do that and has streaming support is available in https://www.npmjs.com/package/@oneidentity/zstd-js

zstd is both faster and more efficient than gzip.

Once we support compressing and uncompressing in the UI, we could then compress the profiles using zstd [instead of gzip in Firefox too](https://searchfox.org/mozilla-central/rev/31f5847a4494b3646edabbdd7ea39cb88509afe2/tools/profiler/gecko/nsIProfiler.idl#94).

┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-633)