chore(deps): update determinatesystems/nix-installer-action action to v12 #6880

Job	Run time
Codegeneration	1m 33s
Test with coverage	6m 15s
Extra checks	4m 39s
Javadoc quality	2m 3s
maven-central-requirements	1m 50s
reproducible-builds	3m 4s
Tests with Java 17 on ubuntu-latest	5m 56s
Tests with Java 17 on windows-latest	11m 34s
Tests with Java 21 on ubuntu-latest	5m 42s
	42m 36s

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