[stubsabot] Bump httplib2 to 0.31.2

Release: https://pypi.org/pypi/httplib2/0.31.2
Homepage: https://github.com/httplib2/httplib2
Repository: https://github.com/httplib2/httplib2
Typeshed stubs: https://github.com/python/typeshed/tree/main/stubs/httplib2
Diff: httplib2/httplib2@v0.31.1...v0.31.2

Stubsabot analysis of the diff between the two releases:
 - 0 public Python files have been added.
 - 0 files included in typeshed's stubs have been deleted.
 - 1 file included in typeshed's stubs has been modified or renamed: `httplib2/__init__.py`.
 - Total lines of Python code added: 2.
 - Total lines of Python code deleted: 2.

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- 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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Author: stubsabot

stubs/httplib2/METADATA.toml

@@ -1,2 +1,2 @@
-version = "0.31.1"
+version = "0.31.2"
 upstream_repository = "https://github.com/httplib2/httplib2"