Add gzip encoding for HTTP requests

[gardusig]

• Apply this for each request by appending this to the default header: Accept-Encoding: gzip

[gardusig]

Example at Go SDK:

• Header: https://github.com/conductor-sdk/conductor-go/blob/main/sdk/settings/http_settings.go#L29
• Decompress: https://github.com/conductor-sdk/conductor-go/blob/main/sdk/client/api_client.go#L610-L618

[DmitryBorisov-sm]

This is now part of the SDK, as the undici-powered fetch handles it automatically under the hood.