build(deps): bump iv-project/IVaction from 9.16 to 9.21 #70

Job	Run time
ubuntu-22.04-spdx_reuse_lint	34s
ubuntu-22.04-cpm_version_check	29s
ubuntu-22.04-gcc12-cpp20-release	49m 14s
ubuntu-22.04-gcc13-cpp20-release	48m 18s
ubuntu-22.04-gcc14-cpp20-release	52m 5s
ubuntu-22.04-gcc14-cpp20-debug-sanitize_address	27m 19s
ubuntu-22.04-gcc14-cpp20-debug-sanitize_undefined	31m 50s
ubuntu-22.04-gcc14-cpp20-debug-sanitize_thread	33m 40s
ubuntu-22.04-gcc14-cpp20-lcov	32m 56s
ubuntu-22.04-gcc14-cpp23-release	53m 38s
ubuntu-22.04-clang16-cpp20-release	11m 58s
ubuntu-22.04-clang17-cpp20-release	11m 36s
macos-12-gcc14-cpp20-release	12m 38s
macos-12-clang17-cpp20-release	15m 36s
windows-2022-msvc-cpp20-release	19m 42s
windows-2022-msvc-cpp20-debug-notests	10m 13s
ubuntu-22.04-emscripten-cpp20-release	9m 14s
final-pass	1s
	7h 1m 1s

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