build: Bump Boost required by CMake from 1.72 to 1.80

From CONTRIBUTING.md:
  WARNING: The CMake configuration is only provided for convenience of contributors.
  It does not export or install any targets, deploy config files or support subproject workflow.

CMakeLists.txt

@@ -140,7 +140,7 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
   set(Boost_USE_STATIC_RUNTIME OFF)
 endif()
 
-find_package(Boost 1.72.0 REQUIRED COMPONENTS filesystem)
+find_package(Boost 1.80.0 REQUIRED COMPONENTS filesystem)
 message(STATUS "Boost.GIL: Using Boost_INCLUDE_DIRS=${Boost_INCLUDE_DIRS}")
 message(STATUS "Boost.GIL: Using Boost_LIBRARY_DIRS=${Boost_LIBRARY_DIRS}")