Fix: use setup-go@v6 (not checkout@v6)

Co-authored-by: mason <mason@onkernel.com>

Author: cursoragent

.github/workflows/update-cli-coverage.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout SDK repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           fetch-depth: 2
           fetch-tags: true
@@ -31,7 +31,7 @@ jobs:
           git config --global user.email "cursor-agent@kernel.sh"
 
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: 'stable'