Release v3.2.1

• c48c6a3 🔖 v3.2.1
• bea1ad6 👷 Generate changelog from gitmoji
• a60d280 🔨 Only include GNUInstallDirs if required (#15)
• 3857c67 🔨 Only look for qt if not Qt::Core target exists (#16)
• cc2a3ac 📌 googletest v1.12.1
• a31f50b 👷 qt 6.1.0 to qt 6.2.0