Single run plot fix #789

Job	Run time
Generate comparison results	2m 57s
Generate comparison results	2m 57s
Test source with coverage	7m 18s
Test source with coverage	9m 28s
Test package (3.11 on ubuntu-latest)	2m 33s
Test package (3.11 on ubuntu-latest)	2m 33s
Test package (3.11 on macos-latest)	4m 14s
Test package (3.11 on macos-latest)	4m 14s
Test package (3.10 on ubuntu-latest)	2m 44s
Test package (3.10 on ubuntu-latest)	2m 44s
Test package (3.10 on macos-latest)	3m 6s
Test package (3.10 on macos-latest)	3m 6s
Test package (3.10 on windows-latest)	7m 0s
Test package (3.10 on windows-latest)	6m 8s
Test package (3.9 on ubuntu-latest)	2m 52s
Test package (3.9 on ubuntu-latest)	2m 52s
Test package (3.9 on macos-latest)	4m 30s
Test package (3.9 on macos-latest)	4m 30s
Test package (3.9 on windows-latest)	7m 2s
Test package (3.9 on windows-latest)	4m 53s
Test package (3.8 on ubuntu-latest)	2m 55s
Test package (3.8 on ubuntu-latest)	2m 55s
Test package (3.8 on macos-latest)	4m 49s
Test package (3.8 on macos-latest)	4m 49s
	1h 43m 9s

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