Github: set OMPI and PaRSEC related env variables and remove setlocal…

…e call

OMPI_MCA_btl_vader_single_copy_mechanism is meant to suppress an error
message from an incompatibility between btl/vader and docker, see
open-mpi/ompi#4948.

PARSEC_MCA_runtime_bind_threads is meant to disable thread binding in
PaRSEC, potentially speeding up test runs.

Signed-off-by: Joseph Schuchart <schuchart@icl.utk.edu>

.github/workflows/cmake.yml

@@ -26,6 +26,8 @@ jobs:
       CCACHE_DIR : ${{github.workspace}}/build/.ccache
       CCACHE_COMPRESS : true
       CCACHE_COMPRESSLEVEL : 6
+      OMPI_MCA_btl_vader_single_copy_mechanism : none
+      PARSEC_MCA_runtime_bind_threads : 0
       BUILD_CONFIG : >
         -G Ninja
         -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}