fix: [#4684] ESLint issues in botbuilder-azure-blobs

[ceciliaavila]

Addresses #4684
#minor

Description

This PR fixes the new ESLint errors and warnings after upgrading the ESLint packages in the botbuilder-azure-blobs project.

Specific Changes

• Removed 'botbuilder-azure-blobs/eslint.config.cjs' file as it contained only the 'only-warn' plugin which was no longer needed.
• Applied the auto-fix flag for all the issues (spacing and trailing commas).

Testing

The following images show the number of issues fixed in the library.

[coveralls]

Pull Request Test Coverage Report for Build 12084402482

Details

• 0 of 2 (0.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 84.691%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
libraries/botbuilder-azure-blobs/src/blobsStorage.ts	0	1	0.0%
libraries/botbuilder-azure-blobs/src/blobsTranscriptStore.ts	0	1	0.0%

Totals
Change from base Build 12051547941:	0.0%
Covered Lines:	20517
Relevant Lines:	23070

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💛 - Coveralls