Move all model-specific info out of workbench #3549

Job	Run time
Check HISTORY RST syntax	11s
Check for syntax errors	11s
Run model tests (3.8, windows-latest)	8m 14s
Check sdist (3.8, windows-latest)	3m 18s
Run model tests (3.8, macos-latest)	11m 31s
Check sdist (3.8, macos-latest)	1m 57s
Run model tests (3.9, windows-latest)	10m 43s
Check sdist (3.9, windows-latest)	4m 31s
Run model tests (3.9, macos-latest)	5m 22s
Build sampledata archives	4m 50s
Check sdist (3.9, macos-latest)	2m 59s
Build binaries (macos-latest)	15m 23s
Run model tests (3.10, windows-latest)	8m 59s
Check sdist (3.10, windows-latest)	5m 57s
Build binaries (windows-latest)	12m 45s
Run model tests (3.10, macos-latest)	11m 12s
Check sdist (3.10, macos-latest)	2m 8s
Run model tests (3.11, windows-latest)	8m 14s
Run Workbench Tests (windows-latest)	4m 59s
Check sdist (3.11, windows-latest)	5m 56s
Run model tests (3.11, macos-latest)	10m 55s
Validate Sampledata & User Guide	6m 11s
Run Workbench Tests (macos-latest)	4m 19s
Check sdist (3.11, macos-latest)	1m 47s
	2h 32m 32s

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