Commit 48abb1c

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Add git.Blob fuzz target

Based on the `test_blob.py` unit test.

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	`1`	`+import atheris`
	`2`	`+import sys`
	`3`	`+import os`
	`4`	`+import tempfile`
	`5`	`+`
	`6`	`+if getattr(sys, "frozen", False) and hasattr(sys, "_MEIPASS"):`
	`7`	`+ path_to_bundled_git_binary = os.path.abspath(os.path.join(os.path.dirname(__file__), "git"))`
	`8`	`+ os.environ["GIT_PYTHON_GIT_EXECUTABLE"] = path_to_bundled_git_binary`
	`9`	`+`
	`10`	`+with atheris.instrument_imports():`
	`11`	`+ import git`
	`12`	`+`
	`13`	`+`
	`14`	`+def TestOneInput(data):`
	`15`	`+ fdp = atheris.FuzzedDataProvider(data)`
	`16`	`+`
	`17`	`+ with tempfile.TemporaryDirectory() as temp_dir:`
	`18`	`+ repo = git.Repo.init(path=temp_dir)`
	`19`	`+ blob = git.Blob(`
	`20`	`+ repo,`
	`21`	`+ **{`
	`22`	`+ "binsha": git.Blob.NULL_BIN_SHA,`
	`23`	`+ "path": fdp.ConsumeUnicodeNoSurrogates(fdp.remaining_bytes()),`
	`24`	`+ },`
	`25`	`+ )`
	`26`	`+`
	`27`	`+ _ = blob.mime_type`
	`28`	`+`
	`29`	`+`
	`30`	`+def main():`
	`31`	`+ atheris.Setup(sys.argv, TestOneInput)`
	`32`	`+ atheris.Fuzz()`
	`33`	`+`
	`34`	`+`
	`35`	`+if __name__ == "__main__":`
	`36`	`+ main()`

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