Fix typo in sf-dev yaml

Author: Robinlovelace

.github/workflows/dev-sf.yaml

@@ -11,7 +11,8 @@ jobs:
     runs-on: ubuntu-latest
     container: geocompr/geocompr
     env:
-      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}steps:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+
     steps:
         - name: Checkout Project
           uses: actions/checkout@v1