chore: throw FileNotFoundError for nonexistant files (#3014) #4441

Job	Run time
Lint	3m 22s
Conda Build (ubuntu-22.04)	5m 19s
Conda Build (windows-2022)	9m 46s
Conda Build (macos-13)	9m 46s
Stable (macos-latest, chrome)	18m 19s
Stable (windows-latest, msedge)	23m 23s
Examples	43s
Stable (windows-latest, chrome)	17m 44s
Stable (macos-latest, msedge)	25m 33s
Stable (ubuntu-latest, chrome)	11m 57s
Build (ubuntu-latest, 3.9, firefox)	19m 56s
Build (ubuntu-latest, 3.10, chromium)	11m 5s
Build (ubuntu-latest, 3.9, chromium)	10m 55s
Build (ubuntu-latest, 3.9, webkit)	16m 20s
Build (ubuntu-latest, 3.10, webkit)	15m 49s
Build (windows-latest, 3.9, firefox)	28m 10s
Build (ubuntu-latest, 3.10, firefox)	20m 15s
Build (windows-latest, 3.9, webkit)	17m 33s
Build (windows-latest, 3.10, chromium)	17m 44s
Build (windows-latest, 3.9, chromium)	18m 12s
Build (macos-latest, 3.9, firefox)	31m 47s
Build (windows-latest, 3.10, firefox)	27m 10s
Build (windows-latest, 3.10, webkit)	17m 36s
Build (ubuntu-latest, 3.11, chromium)	10m 55s
Build (macos-latest, 3.10, chromium)	13m 10s
Build (macos-latest, 3.9, webkit)	16m 20s
Build (windows-latest, 3.11, chromium)	18m 15s
Build (macos-latest, 3.9, chromium)	15m 3s
Build (ubuntu-latest, 3.13, chromium)	10m 44s
Build (macos-latest, 3.10, webkit)	19m 9s
Build (windows-latest, 3.12, chromium)	17m 50s
Build (windows-latest, 3.13, chromium)	18m 26s
Build (macos-latest, 3.13, chromium)	11m 21s
Build (macos-latest, 3.11, chromium)	13m 33s
Build (ubuntu-latest, 3.12, chromium)	11m 8s
Build (macos-latest, 3.10, firefox)	26m 31s
Build (macos-latest, 3.12, chromium)	13m 16s
	9h 54m 5s

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