Fix lint in Vulkan backend

[manuelcandales]

Forward fixing lint for #18031

cc @SS-JIA @digantdesai @cbilgin

[pytorch-bot]

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[Copilot]

Pull request overview

This PR forward-fixes a lint/formatting issue in the Vulkan backend’s quantized convolution pattern matcher, aligning formatting with the repository’s Python style tooling.

Changes:

• Reformats the output_padding assignment in QuantizedConvolutionMatch.__init__ to satisfy lint/line-length formatting.

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