Modify tests to deal with variety of Ghostscript versions #623

Job	Run time
Build sdist and wheels	13s
Test ubuntu-22.04 with Python 3.10	5m 27s
Test Windows (windows-latest, 3.10)	8m 2s
Test ubuntu-22.04 with Python 3.11	5m 16s
Test macOS (macos-latest, 3.10)	6m 11s
Test Windows (windows-latest, 3.11)	7m 51s
Test macOS (macos-latest, 3.11)	5m 27s
Test ubuntu-22.04 with Python 3.12	5m 22s
Test Windows (windows-latest, 3.12)	7m 59s
Test macOS (macos-latest, 3.12)	4m 56s
Test ubuntu-22.04 with Python 3.13	5m 10s
Test Windows (windows-latest, 3.13)	8m 14s
Test macOS (macos-latest, 3.13)	5m 22s
Test ubuntu-24.04 with Python 3.10	4m 54s
Test macOS (macos-13, 3.10)	7m 57s
Test ubuntu-24.04 with Python 3.11	4m 57s
Test macOS (macos-13, 3.11)	7m 31s
Test ubuntu-24.04 with Python 3.12	4m 55s
Test macOS (macos-13, 3.12)	13m 25s
Test ubuntu-24.04 with Python 3.13	5m 13s
Test macOS (macos-13, 3.13)	8m 52s
Test ubuntu-24.04 with Python pypy3.10	5m 24s
Build Alpine-based Docker images	0s
Build Ubuntu-based Docker image	0s
Deploy artifacts to PyPI	0s
Create GitHub release	0s
	2h 18m 38s

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