Use Boost v1.80 in CI

Author: jimporter

.github/workflows/build.yml

@@ -47,21 +47,21 @@ jobs:
 
           # Windows builds
           - {os: windows-2019,   compiler: msvc, version: '14.16',  # VS 2017
-             boost-version: '1.78.0'}
+             boost-version: '1.80.0'}
           - {os: windows-2019,   compiler: msvc, version: '14.29',  # VS 2019
-             boost-version: '1.78.0'}
+             boost-version: '1.80.0'}
           - {os: windows-latest, compiler: msvc, version: '14.34',  # VS 2022
-             boost-version: '1.78.0'}
+             boost-version: '1.80.0'}
 
           # macOS builds
           - {os: macos-latest, compiler: clang}
 
           # C++20 builds
           - {os: ubuntu-22.04, compiler: gcc, version: '12',
              options: '--std=c++20', flags: '-Wsuggest-override',
-             boost-version: '1.78.0', extra-desc: 'c++20'}
+             boost-version: '1.80.0', extra-desc: 'c++20'}
           - {os: ubuntu-latest, compiler: clang, version: '14',
-             options: '--std=c++20', boost-version: '1.78.0',
+             options: '--std=c++20', boost-version: '1.80.0',
              extra-desc: 'c++20'}
       fail-fast: false