Try single line just to validate

Author: raulcd

.github/workflows/cpp_extra.yml

@@ -109,9 +109,7 @@ jobs:
             title: AMD64 Alpine Linux
           - image: ubuntu-cpp
             run-options: >-
-              -e ARROW_BUILD_TYPE=Release \
-              -e ARROW_CTEST_TIMEOUT=900 \
-              -e ARROW_LARGE_MEMORY_TESTS=ON
+              -e ARROW_BUILD_TYPE=Release -e ARROW_CTEST_TIMEOUT=900 -e ARROW_LARGE_MEMORY_TESTS=ON
             runs-on: "runs-on=${{ github.run_id }}/family=x8i.2xlarge/spot=capacity-optimized"
             title: AMD64 Ubuntu Large Memory Tests
           - image: conda-cpp