Fix inode checksum calculation #122

Job	Run time
Lint code	11s
Generate test ext4 image	13s
Test on ubuntu-latest python 3.10	18s
Test on windows-latest python 3.9	30s
Test on ubuntu-latest python 3.13	14s
Test on ubuntu-latest python 3.9	17s
Test on ubuntu-latest python 3.11	17s
Test on macos-latest python 3.12	24s
Test on windows-latest python 3.11	27s
Test on windows-latest python 3.10	31s
Test on windows-latest python 3.13	29s
Test on ubuntu-latest python 3.12	14s
Test on macos-latest python 3.13	25s
Test on macos-latest python 3.9	43s
Test on macos-latest python 3.10	40s
Test on windows-latest python 3.12	35s
Test on macos-latest python 3.11	19s
Build pip package	20s
Add pip to release	0s
Publish to PyPi	0s
	7m 7s

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