gzip: add force load factory declaration (#9942)
gzip: add force load factory declaration (#9942)

Adds a force load factory declaration so that this filter can be force-loaded by Envoy Mobile.

Risk Level: Low
Testing: Done locally, and CI
Docs Changes: None
Release Notes: None

Signed-off-by: Michael Rebello <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@michaelrebello.com>
istio/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lyft/envoy,istio/envoy,eklitzke/envoy,lyft/envoy,istio/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,istio/envoy,istio/envoy,envoyproxy/envoy,lizan/envoy,lizan/envoy,lizan/envoy,istio/envoy,lyft/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,eklitzke/envoy,envoyproxy/envoy,istio/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,eklitzke/envoy,eklitzke/envoy,lyft/envoy,envoyproxy/envoy,lyft/envoy,lizan/envoy,lizan/envoy,eklitzke/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy