fix: Correct the example Protobuf build after update to Protobuf plug…

…in 0.5.0

.github/workflows/examples.yml

@@ -121,13 +121,16 @@ jobs:
       - name: Run Protobuf examples (Linux)
         run: |
           set -e
-          cd protobuf-consumer-jvm
+          pushd protobuf-consumer-jvm
           ./gradlew check
-          cd ../protobuf-consumer-maven
+          popd
+          pushd protobuf-consumer-maven
           mvn verify
-          cd ../../..
+          popd
+          pushd ../..
           docker run -t -v $(pwd):/build protobuf-container -c 'cd examples/protobuf/protobuf-consumer-rust && cargo test'
-          cd examples/protobuf/protobuf-provider
+          popd
+          pushd protobuf-provider
           go build main.go
           nohup ./main &
           PID=$!

examples/protobuf/Dockerfile.rust

@@ -1,15 +1,15 @@
 FROM rust:1-buster
 
-ARG PACT_PLUGIN_CLI_VERSION=0.1.0
-ARG PACT_PLUGIN_PROTOBUF_VERSION=0.3.2
+ARG PACT_PLUGIN_CLI_VERSION=0.1.2
+ARG PACT_PLUGIN_PROTOBUF_VERSION=0.5.1
 
 # Install deps
 RUN apt clean && apt update && apt install -y git-core gcc wget protobuf-compiler
 
 # Install pact-plugin-cli + protobuf plugin
 RUN wget https://github.com/pact-foundation/pact-plugins/releases/download/pact-plugin-cli-v${PACT_PLUGIN_CLI_VERSION}/pact-plugin-cli-linux-x86_64.gz && gunzip pact-plugin-cli-linux-x86_64.gz
 RUN mv pact-plugin-cli-linux-x86_64 /usr/local/bin/pact-plugin-cli && chmod +x /usr/local/bin/pact-plugin-cli
-RUN pact-plugin-cli -y install protobuf -v 0.3.2
+RUN pact-plugin-cli -y install protobuf -v $PACT_PLUGIN_PROTOBUF_VERSION
 
 WORKDIR /build