chore: replace 3.8 with 3.12 in pipeline matrix #416

Job	Run time
💎 Code Quality / Lint	36s
🧪 Build & test Code / build (3.9, windows-latest)	1m 12s
🧪 Build & test Code / build (3.9, ubuntu-latest)	1m 26s
🧪 Build & test Code / build (3.9, macos-latest)	54s
🧪 Build & test Code / build (3.10, windows-latest)	1m 41s
🧪 Build & test Code / build (3.10, macos-latest)	50s
🧪 Build & test Code / build (3.11, ubuntu-latest)	2m 16s
️‍🕵️‍♀️ Snyk vulnerability scan / Snyk vulnerability scan	14s
🧪 Build & test Code / build (3.10, ubuntu-latest)	1m 29s
🧪 Build & test Code / build (3.11, windows-latest)	1m 18s
🧪 Build & test Code / build (3.11, macos-latest)	31s
	12m 27s

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