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

Author: renovate[bot]

.github/workflows/pr-checks.yml

@@ -66,7 +66,7 @@ jobs:
 
       # Run go test suite to validate the json schema against positive and/or negative validations in /json/test
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Validate Schema