gh-101100: Fix Sphinx warnings in reference/expressions.rst

[hugovk]

Fix remaining 26 reference warnings in this file, all squiggle object dunders:

Doc/reference/expressions.rst:1002: WARNING: py:meth reference target not found: __call__ Doc/reference/expressions.rst:1162: WARNING: py:meth reference target not found: __call__ Doc/reference/expressions.rst:1214: WARNING: py:meth reference target not found: __pow__ Doc/reference/expressions.rst:1236: WARNING: py:meth reference target not found: __neg__ Doc/reference/expressions.rst:1244: WARNING: py:meth reference target not found: __pos__ Doc/reference/expressions.rst:1251: WARNING: py:meth reference target not found: __invert__ Doc/reference/expressions.rst:1292: WARNING: py:meth reference target not found: __mul__ Doc/reference/expressions.rst:1292: WARNING: py:meth reference target not found: __rmul__ Doc/reference/expressions.rst:1317: WARNING: py:meth reference target not found: __truediv__ Doc/reference/expressions.rst:1317: WARNING: py:meth reference target not found: __floordiv__ Doc/reference/expressions.rst:1343: WARNING: py:meth reference target not found: __mod__ Doc/reference/expressions.rst:1359: WARNING: py:meth reference target not found: __add__ Doc/reference/expressions.rst:1359: WARNING: py:meth reference target not found: __radd__ Doc/reference/expressions.rst:1370: WARNING: py:meth reference target not found: __sub__ Doc/reference/expressions.rst:1391: WARNING: py:meth reference target not found: __lshift__ Doc/reference/expressions.rst:1391: WARNING: py:meth reference target not found: __rshift__ Doc/reference/expressions.rst:1418: WARNING: py:meth reference target not found: __and__ Doc/reference/expressions.rst:1418: WARNING: py:meth reference target not found: __rand__ Doc/reference/expressions.rst:1427: WARNING: py:meth reference target not found: __xor__ Doc/reference/expressions.rst:1427: WARNING: py:meth reference target not found: __rxor__ Doc/reference/expressions.rst:1436: WARNING: py:meth reference target not found: __or__ Doc/reference/expressions.rst:1436: WARNING: py:meth reference target not found: __ror__ Doc/reference/expressions.rst:1502: WARNING: py:meth reference target not found: __lt__ Doc/reference/expressions.rst:1669: WARNING: py:meth reference target not found: __contains__ Doc/reference/expressions.rst:1673: WARNING: py:meth reference target not found: __contains__ Doc/reference/expressions.rst:1673: WARNING: py:meth reference target not found: __iter__ 

• Issue: Fix all Sphinx reference warnings in the documentation #101100

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[ronaldoussoren]

LGTM

[miss-islington-app]

Thanks @hugovk for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11, 3.12.
🐍🍒⛏🤖

[bedevere-app]

GH-114436 is a backport of this pull request to the 3.12 branch.

[bedevere-app]

GH-114437 is a backport of this pull request to the 3.11 branch.