[stubsabot] Bump polib to 1.2.* (#9804)

Release: https://pypi.org/pypi/polib/1.2.0
Homepage: https://github.com/izimobil/polib/
Diff: izimobil/polib@1.1.1...1.2.0

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: `polib.py`.
 - Total lines of Python code added: 293.
 - Total lines of Python code deleted: 195.

Author: github-actions[bot]

stubs/polib/METADATA.toml

@@ -1 +1 @@
-version = "1.1.*"
+version = "1.2.*"