Release v3.4.1

This release addresses a number of issues with the v3.4.0 release. Most notably, we've corrected a number of issues with the various tool packages that support F´.

What's Changed

• CMake Implementation Selection by @LeStarch in #2384
• Library UTs correctly added with messaging. Fixes #2392 by @LeStarch in #2393
• Update PR template by @thomas-bc in #2402
• Add FPP JSON dictionary spec by @jwest115 in #2403
• Prettify error message if googletest is missing by @thomas-bc in #2408
• Fixing Two Minor CMake Bugs by @LeStarch in #2412
• Add CI on release branches by @thomas-bc in #2417
• Fixes #2420 by removing impl and testimpl targets by @LeStarch in #2425
• Fix check targets name mismatch by @thomas-bc in #2430
• Add recommended pip versions to INSTALL.md by @thomas-bc in #2431
• Attempt to fix #2383 with cleaner code refactoring by @LeStarch in #2434
• Update FPP version to 2.0.2 by @bocchino in #2433
• Fixes #2432 removing extra pointer qualifier by @LeStarch in #2435
• Tame CI to use fewer parallel jobs by @LeStarch in #2437
• Changes for v3.4.1 by @LeStarch in #2438

Full Changelog: v3.4.0...v3.4.1