(maint) Update `TEMPLATE_REF` for testing purposes #698

Job	Run time
spec (ruby 2.7) / spec	50s
spec (ruby 3.2) / spec	52s
acceptance (ruby 2.7 \| windows-2019) / acceptance	31m 52s
acceptance (ruby 2.7 \| ubuntu-latest) / acceptance	12m 30s
acceptance (ruby 3.2 \| ubuntu-latest) / acceptance	12m 30s
acceptance (ruby 3.2 \| windows-2019) / acceptance	7m 22s
	1h 5m 56s

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