[ENH] Test coverage for Resnet Network

[kavya-r30]

Reference Issues/PRs

Fixes #2497

What does this implement/fix? Explain your changes.

Implements Test Coverages for Resnet in networks module.

Does your contribution introduce a new dependency? If yes, which one?

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I have added the following labels to this PR based on the title: [ $\color{#FEF1BE}{\textsf{enhancement}}$ ].
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[hadifawaz1999]

Thanks for this, could you explicity mention "resnet" in the test name functions ?

[kavya-r30]

@hadifawaz1999 Thanks for pointing it out, now I have mentioned "resnet" in every test function name, could you please review them?