Update GHA virtual environments

- remove ubuntu-16, windows-2016, macos-10.15
  see https://github.com/actions/virtual-environments/issues/5238
  see https://github.com/actions/virtual-environments/issues/5583
- add ubuntu-22, macos-12, macos-11

github-actions/ci-scripts-build.yml.example-full

@@ -59,10 +59,10 @@ jobs:
             extra: "CMD_CXXFLAGS=-std=c++11"
             name: "Ub-20 gcc-9 C++11, static"
 
-          - os: ubuntu-16.04
+          - os: ubuntu-18.04
             cmp: clang
             configuration: default
-            name: "Ub-16 clang-9"
+            name: "Ub-18 clang-9"
 
           - os: ubuntu-20.04
             cmp: clang
@@ -97,18 +97,6 @@ jobs:
             test: NO
             name: "Ub-20 gcc-9 + RT-5.1 beatnik"
 
-          - os: ubuntu-16.04
-            cmp: gcc-4.8
-            utoolchain: true
-            configuration: default
-            name: "Ub-16 gcc-4.8"
-
-          - os: ubuntu-16.04
-            cmp: gcc-4.9
-            utoolchain: true
-            configuration: default
-            name: "Ub-16 gcc-4.9"
-
           - os: ubuntu-18.04
             cmp: gcc
             configuration: default