Add roadrunner-server php-grpc plugin (#656)

Fixes #655.

plugins/community/roadrunner-server-php-grpc/source.yaml

@@ -0,0 +1,4 @@
+source:
+  github:
+    owner: roadrunner-server
+    repository: grpc

plugins/community/roadrunner-server-php-grpc/v4.3.0/.dockerignore

@@ -0,0 +1,2 @@
+*
+!Dockerfile

plugins/community/roadrunner-server-php-grpc/v4.3.0/Dockerfile

@@ -0,0 +1,11 @@
+# syntax=docker/dockerfile:1.4
+FROM golang:1.20.6-bullseye AS build
+RUN --mount=type=cache,target=/go/pkg/mod \
+    CGO_ENABLED=0 \
+    go install -ldflags="-s -w" -trimpath github.com/roadrunner-server/grpc/protoc_plugins/v4/[email protected]
+
+FROM scratch
+COPY --from=build --link --chown=root:root /etc/passwd /etc/passwd
+COPY --from=build --link --chown=root:root /go/bin/protoc-gen-php-grpc /
+USER nobody
+ENTRYPOINT [ "/protoc-gen-php-grpc" ]

plugins/community/roadrunner-server-php-grpc/v4.3.0/buf.plugin.yaml

@@ -0,0 +1,11 @@
+version: v1
+name: buf.build/community/roadrunner-server-php-grpc
+plugin_version: v4.3.0
+source_url: https://github.com/roadrunner-server/grpc
+description: Generates code for the PHP RoadRunner application server.
+deps:
+  - plugin: buf.build/protocolbuffers/php:v23.4
+spdx_license_id: MIT
+license_url: https://github.com/roadrunner-server/grpc/blob/v4.3.0/LICENSE
+output_languages:
+  - php

tests/testdata/buf.build/community/roadrunner-server-php-grpc/v4.3.0/eliza/plugin.sum

@@ -0,0 +1 @@
+h1:jT7gKL/t3iAPRsfXcC8b24F5IdSxtcuyuhD8yvmGRiA=

tests/testdata/buf.build/community/roadrunner-server-php-grpc/v4.3.0/petapis/plugin.sum

@@ -0,0 +1 @@
+h1:7bA/GKq0K0btx4JnO+NSpYBkPfz0oSLjz+Ddv/NYe/A=