Merge pull request #3052 from murgatroid99/grpc-js_1.14.4

grpc-js: Bump version to 1.14.4

Merge pull request #3053 from murgatroid99/grpc-js_1.13.5

grpc-js: Bump version to 1.13.5

Merge pull request #3054 from murgatroid99/grpc-js_1.12.7

grpc-js: Bump version to 1.12.7

Merge pull request #3055 from murgatroid99/grpc-js_1.11.4

grpc-js: Bump version to 1.11.4

Merge pull request #3056 from murgatroid99/grpc-js_1.10.12

grpc-js: Bump version to 1.10.12

Merge pull request #3057 from murgatroid99/grpc-js_1.9.16

grpc-js: Bump version to 1.9.16

Merge pull request #3049 from murgatroid99/proto-loader_v0.8.1

proto-loader: Bump to version 0.8.1

Merge pull request #3032 from murgatroid99/grpc-js_retry_half_close_1.14

Backport "Send halfClose immediately after messages to prevent late halfClose issues with Envoy" to 1.14.x

Merge pull request #3029 from murgatroid99/grpc-js_keepalive_fix_back…

…port

Backport "Fix server keep alive timeout not properly destroying connections" to 1.14.x

Merge pull request #3028 from notsapinho/master

feat: support "http_proxy" channel option