[stubsabot] Bump zstd to 1.5.6.4 (#13527)

Release: https://pypi.org/pypi/zstd/1.5.6.4
Homepage: https://github.com/sergey-dryabzhinsky/python-zstd
Repository: https://github.com/sergey-dryabzhinsky/python-zstd
Typeshed stubs: https://github.com/python/typeshed/tree/main/stubs/zstd
Diff: https://github.com/sergey-dryabzhinsky/python-zstd/compare/v1.5.6.3...v1.5.6.4

Stubsabot analysis of the diff between the two releases:
 - Total lines of Python code added: 26.
 - Total lines of Python code deleted: 5.

If stubtest fails for this PR:
- Leave this PR open (as a reminder, and to prevent stubsabot from opening another PR)
- Fix stubtest failures in another PR, then close this PR

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Co-authored-by: stubsabot <>

stubs/zstd/METADATA.toml

@@ -1,2 +1,2 @@
-version = "1.5.6.3"
+version = "1.5.6.4"
 upstream_repository = "https://github.com/sergey-dryabzhinsky/python-zstd"