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

Author: renovate[bot]

.github/workflows/jepsen-test.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           distribution: temurin
           java-version: '21'
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: 'go.mod'
       - name: Install netcat