Clang 18

Switched to Clang 18 and updated GCC to 13.

This release uses macOS 14 @arm.

The docker containers used for building are multi platform supporting
Intel and ARM.

Merge pull request andreasfertig#621 from andreasfertig/fixIssue620

Fixed andreasfertig#620: Do not show move construction for NRVO return.

Merge pull request andreasfertig#590 from andreasfertig/fixIssue492

Fixed andreasfertig#492: Correctly handle lambda in `decltype`.

Merge pull request andreasfertig#568 from andreasfertig/clang16

Clang 16 support.

Merge pull request andreasfertig#513 from andreasfertig/fixIssue512

Fixed andreasfertig#512: added missing PointerToIntegral conversion.

Merge pull request andreasfertig#476 from andreasfertig/fixIssue467

Fixed andreasfertig#467: Forward from invoke to call operator

Merge pull request andreasfertig#433 from andreasfertig/missingUtilit…

…yHeader

Added insertion of utility header if C++ Insights add a `std::move`.

Merge pull request andreasfertig#395 from andreasfertig/clang12Support

Added support for Clang 12.

Merge pull request andreasfertig#395 from andreasfertig/clang12Support

Added support for Clang 12.

Merge pull request andreasfertig#297 from andreasfertig/clang10Support

Switch to Clang 10