ci: reduce build image size (#7773)
ci: reduce build image size (#7773)

Brings down build image from 2.17GB to 1.15GB to speed up CI generally while keep functionalities.

- all recommended packages
+ patch which was included in recommends but explicitly
- golang (now fetched by bazel, was used by boringssl cmake build before)
- gcov
- wireshark (so no more GUI dependencies, tshark is the one used in tests)

apt-get clean at the end.

Risk Level: Low (not used anyway)
Testing: local

Signed-off-by: Lizan Zhou <739047aeb4f72dac9d1867914b065926e8c1008d@tetrate.io>

envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,istio/envoy,jrajahalme/envoy,jrajahalme/envoy,jrajahalme/envoy,envoyproxy/envoy-wasm,eklitzke/envoy,istio/envoy,lyft/envoy,istio/envoy,lyft/envoy,lizan/envoy,lizan/envoy,lyft/envoy,jrajahalme/envoy,istio/envoy,envoyproxy/envoy,istio/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,eklitzke/envoy,eklitzke/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy-wasm,istio/envoy,envoyproxy/envoy,eklitzke/envoy,lizan/envoy,jrajahalme/envoy,eklitzke/envoy,envoyproxy/envoy,lyft/envoy,eklitzke/envoy,lyft/envoy,jrajahalme/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,istio/envoy,lyft/envoy,envoyproxy/envoy-wasm