Update grpc/swift

plugins/grpc/swift/v1.27.4/.dockerignore

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

plugins/grpc/swift/v1.27.4/Dockerfile

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+# syntax=docker/dockerfile:1.19
+FROM swift:6.2.4-bookworm AS build
+
+RUN apt-get update \
+ && apt-get install -y libstdc++-12-dev
+WORKDIR /app
+RUN git clone --depth 1 --branch 1.27.4 https://github.com/grpc/grpc-swift --recursive
+WORKDIR /app/grpc-swift
+RUN swift build -c release --static-swift-stdlib --product protoc-gen-grpc-swift -Xlinker -s
+
+FROM gcr.io/distroless/cc-debian12:latest@sha256:329e54034ce498f9c6b345044e8f530c6691f99e94a92446f68c0adf9baa8464 AS base
+
+FROM scratch
+COPY --link --from=base / /
+COPY --link --from=build /app/grpc-swift/.build/release/protoc-gen-grpc-swift .
+USER nobody
+ENTRYPOINT [ "/protoc-gen-grpc-swift" ]

plugins/grpc/swift/v1.27.4/buf.plugin.yaml

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+version: v1
+name: buf.build/grpc/swift
+plugin_version: v1.27.4
+source_url: https://github.com/grpc/grpc-swift
+description: Generates Swift client and server stubs for the gRPC framework.
+deps:
+  - plugin: buf.build/apple/swift:v1.35.1
+output_languages:
+  - swift
+registry:
+  swift:
+    deps:
+      - source: https://github.com/grpc/grpc-swift.git
+        package: grpc-swift
+        version: 1.27.4
+        products:
+          - GRPC
+  opts:
+    - Visibility=Public
+    - FileNaming=PathToUnderscores
+spdx_license_id: Apache-2.0
+license_url: https://github.com/grpc/grpc-swift/blob/1.27.4/LICENSE
+integration_guide_url: https://github.com/grpc/grpc-swift#getting-grpc-swift

tests/testdata/buf.build/grpc/swift/v1.27.4/eliza/plugin.sum

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+h1:klAEUf7WFX/+TSOOUy7F75AMxFT6Xb3LNOx6aL9DYn0=

tests/testdata/buf.build/grpc/swift/v1.27.4/petapis/plugin.sum

@@ -0,0 +1 @@
+h1:tVvtyf7StUea61DCqt0D6mKsji3dVZxna8snGt78kEA=