Bump minijinja from 2.6.0 to 2.8.0 #81

Job	Run time
build-notificox (ubuntu-latest, notificox, x86_64-unknown-linux-gnu, notificox-x86_64-unknown-lin...	2m 34s
build-notificox (windows-latest, notificox.exe, x86_64-pc-windows-msvc, notificox-x86_64-pc-windo...	6m 2s
build-notificox (macos-latest, notificox, aarch64-apple-darwin, notificox-aarch64-apple-darwin)	3m 20s
Release	8s
	12m 4s

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