chore: update node.js to v22 #244

Job	Run time
test-with-version-file (.tool-versions (fluttergen 5.6.0), .tool-versions, echo "fluttergen 5.6.0...	8s
test (ubuntu-latest)	5s
test-with-version-file (.tool-versions (fluttergen5.6.0), .tool-versions, echo "fluttergen5.6.0" ...	4s
test (macos-latest)	9s
test-with-version-file (.tool-versions (fluttergen 5.6.0), .tool-versions, echo "fluttergen 5.6...	4s
test-with-version-file (.mise.toml (fluttergen = '5.6.0'), .mise.toml, echo "[tools]\nfluttergen ...	4s
test-with-version-file (.mise.toml (fluttergen='5.6.0'), .mise.toml, echo "[tools]\nfluttergen='5...	4s
test-with-version-file (.mise.toml (fluttergen = '5.6.0'), .mise.toml, echo "[tools]\nflutterge...	4s
test-with-version-file (.mise.toml (fluttergen = "5.6.0"), .mise.toml, echo "[tools]\nfluttergen ...	7s
	49s

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