[ENH] Added Test Cases For convolution based-Classification

[Ramana-Raja]

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Added Test Cases For convolution based-Classification

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I have added the following labels to this PR based on the title: [ $\color{#FEF1BE}{\textsf{enhancement}}$ ]. I have added the following labels to this PR based on the changes made: [ $\color{#BCAE15}{\textsf{classification}}$ ]. Feel free to change these if they do not properly represent the PR.

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[MatthewMiddlehurst]

see https://github.com/aeon-toolkit/aeon/pull/2690#issuecomment-2757785421

[MatthewMiddlehurst]

Similar to the other draft PR, classification now has better coverage through the general testing. The clustering PR above does not, so though are still useful though.