fix action

.github/actions/setup/action.yaml

@@ -2,7 +2,6 @@ name: "Shared setup steps"
 runs:
   using: "composite"
   steps:
-    - uses: actions/checkout@v2
     - uses: actions/setup-go@v2
       with:
         go-version: '~1.18'

.github/workflows/main.yml

@@ -16,12 +16,14 @@ jobs:
   check-docs:
     runs-on: ubuntu-latest
     steps:
+    - uses: actions/checkout@v2
     - uses: ./.github/actions/setup
     - name: Check documentation is up to date
       run: './scripts/check-documentation-clean.sh'
   test:
     runs-on: ubuntu-latest
     steps:
+    - uses: actions/checkout@v2
     - uses: ./.github/actions/setup
     - name: Run tests
       run: |