Vadim Makerov

@olix0r there is several points why i added new configurations: 1. `ACCEPT_KEEPALIVE` & `CONNECT_KEEPALIVE` is more specific for TCP and for proxying common TCP traffic, for HTTP/2 make sense to...

@olix0r I supported the behavior of putting variables as in [PR](https://github.com/linkerd/linkerd2-proxy/pull/737), leaving support for new variables(`LINKERD2_PROXY_{INBOUND,OUTBOUND}_HTTP2_KEEPALIVE_{TIMEOUT,INTERVAL}`), as suggested in the [comment](https://github.com/linkerd/linkerd2/issues/12269#issuecomment-2006986026). So I also removed the keepalive timeout and intervals...

After additional exploration about gRPC keepalive i came to conclusion: gRPC keepalive are not suitable for linkerd as service mesh and may be potentially dangerous. Why it's dangerous: Linkerd has...

Close this PR due to [comment](https://github.com/linkerd/linkerd2/issues/12269#issuecomment-2199767041)