Attempt to fix CI. (#84)

See google/sanitizers#1716 for more details.

Signed-off-by: Samuel K. Gutierrez <samuel@lanl.gov>

.github/workflows/build.yml

@@ -18,6 +18,8 @@ jobs:
       run: |
         sudo apt update
         sudo apt install libczmq-dev libmpich-dev
+        # From https://github.com/google/sanitizers/issues/1716
+        sudo sysctl -w vm.mmap_rnd_bits=28
 
     - name: Configure CMake
       run: |