Add r2 upload step to vision Linux build (pytorch#9262)

Author: atalman

.github/workflows/build-wheels-linux.yml

@@ -50,3 +50,7 @@ jobs:
       package-name: ${{ matrix.package-name }}
       smoke-test-script: ${{ matrix.smoke-test-script }}
       trigger-event: ${{ github.event_name }}
+    secrets:
+      R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
+      R2_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+      R2_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}