boost version is updated (#1112)

Author: akeles85

.github/workflows/nightly-ubuntu-x86_64.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         boost:
-          - version: 1.71.0
+          - version: 1.73.0
           - version: 1.76.0
 
         build_type: