Fix inode checksum calculation #121

Job	Run time
Lint code	16s
Generate test ext4 image	11s
Test on windows-latest python 3.9	33s
Test on ubuntu-latest python 3.12	15s
Test on windows-latest python 3.10	34s
Test on ubuntu-latest python 3.11	15s
Test on ubuntu-latest python 3.10	23s
Test on windows-latest python 3.11	37s
Test on ubuntu-latest python 3.9	19s
Test on macos-latest python 3.9	48s
Test on windows-latest python 3.13	30s
Test on macos-latest python 3.12	17s
Test on macos-latest python 3.13	21s
Test on macos-latest python 3.10	48s
Test on macos-latest python 3.11	24s
Test on windows-latest python 3.12	41s
Test on ubuntu-latest python 3.13	13s
Build pip package	20s
Add pip to release	0s
Publish to PyPi	0s
	7m 45s

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