Merge pull request #1540 from kbenzie/benie/gha-use-ninja-in-nightly

[GHA] Use `-GNinja` in nightly workflow

Author: kbenzie

.github/workflows/e2e_core.yml

@@ -115,6 +115,7 @@ jobs:
       run: >
         cmake
         -B build
+        -GNinja
         -DCMAKE_C_COMPILER=${{matrix.compiler.c}}
         -DCMAKE_CXX_COMPILER=${{matrix.compiler.cxx}}
         -DCMAKE_BUILD_TYPE=${{matrix.build_type}}