chore(deps): update actions/setup-node action to v6

Ref: PACT-445

Author: pactflow-renovate-bot[bot]

.github/workflows/build.yml

@@ -44,7 +44,7 @@ jobs:
       PACT_CLI_DOCKER_VERSION: ${{ needs.set-pact-cli-docker-version.outputs.PACT_CLI_DOCKER_VERSION}}
     steps:
       - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
+      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install