Migrate to cpp version 20

[wsobel]

Upgraded C++ to version 20 and boost to version 1.88.

[Copilot]

Pull Request Overview

This pull request upgrades the codebase from C++ version 17 to version 20 and updates Boost from version 1.85 to 1.88. The changes include updating compiler standards, modernizing deprecated Boost ASIO APIs, updating copyright years to 2025, and fixing compatibility issues with the new library versions.

Key Changes:

• Updated C++ standard from 17 to 20 across all build configurations and profiles
• Upgraded Boost dependency from 1.85.0 to 1.88.0 and other library versions
• Replaced deprecated Boost ASIO APIs with modern equivalents throughout the codebase

Reviewed Changes

Copilot reviewed 291 out of 291 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
CMakeLists.txt	Updated C++ standard to 20 and incremented build version
conanfile.py	Upgraded Boost to 1.88.0, mqtt_cpp to 13.2.2, and gtest to 1.17.0
conan/profiles/*	Updated all compiler profiles to use C++ standard 20
src/mtconnect/utilities.*	Modernized date/time handling and fixed API compatibility issues
test_package/period_filter_test.cpp	Replaced deprecated reset() with restart() for io_context
Various test and source files	Updated copyright years to 2025 and fixed ASIO API usage

Comments suppressed due to low confidence (6)

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