Fix workflow syntax error (microsoft#48842)

Author: andrewbranch

.github/workflows/twoslash-repros.yaml

@@ -20,9 +20,8 @@ on:
 
 jobs:
   run:
-    if: ${{ !github.event.label && !github.event.inputs.bisect_issue }}
+    if: ${{ github.repository == 'microsoft/TypeScript' && !github.event.label && !github.event.inputs.bisect_issue }}
     runs-on: ubuntu-latest
-    if: github.repository == 'microsoft/TypeScript'
     steps:
     - name: Use node
       uses: actions/setup-node@v1