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

Author: renovate-bot

.github/workflows/conformance.yml

@@ -47,7 +47,7 @@ jobs:
         dotnet-version: ${{ matrix.dotnet }}
 
     - name: Setup Go
-      uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6.0.0
       with:
         go-version: '^1.16'