Update pyqt5-sip requirement from >=12.13 to >=12.18.0 in /src

[dependabot]

Updates the requirements on pyqt5-sip to permit the latest version.

Changelog

Sourced from pyqt5-sip's changelog.

Release Notes

v6.15.3

Bug fixes

• Fixed the handling of virtuals that return enums with a non-int base type. Resolves #105
• A regression in v6.15.2 that caused a crash if MinimumABIVersion was not specified was fixed. Resolves #106

Deprecations

The use of the %MinimumABIVersion directive will be required in SIP v7. Failing to use it now results in a deprecation warning.

Testing

• The tests now amend CXXFLAGS instead of overwriting them. This fixes blhc (build log hardening check) in Debian. Pull request #104.

v6.15.2

Enhancements

• The way in which the parser checks for duplicate attributes in a scope is now quick and complete.

Bug fixes

• Operators that take an enum as their first argument is now fixed in ABI v13. The latest ABI v13 version is v13.11.1.
• The handling of the wrapped instance result of a call to a method with the /Factory/ annotation has been fixed in the case where result was created by a Python reimplementation of a C++ virtual.
• Fixed a warning about an unclosed file when generating code.
• Removed support for all remaining Python v2 exceptions.

Testing

• The tests are now included in the sdist. Resolves #103
• The mixins test was fixed so that it will run on Python v3.12 and earlier. Resolves #101
• Added tests including those related to enums and importing wrapped modules.
• Tests may now use separate .h files rather then code embedded in the .sip files.

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Commits

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