Merge pull request fraunhoferhhi#531 from fraunhoferhhi/adamjw24-patch-1

Remove Ubuntu 20.04 builder

Author: adamjw24

.github/workflows/Build.yml

@@ -43,10 +43,6 @@ jobs:
               cxx: "g++",
               generators: "MinGW Makefiles"
             }
-          - {
-              name: "Ubuntu 20.04",
-              os: ubuntu-20.04
-            }
           - {
               name: "Ubuntu 22.04",
               os: ubuntu-22.04