Bug fix: gRPC check throws errors when response data size > 50 chars

[minhhoangvn]

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Description

Fixes #2480

Type of change

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• Bug fix (non-breaking change which fixes an issue)

Checklist

• [x] My code follows the style guidelines of this project
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[minhhoangvn]

😅 @louislam and @Saibamen could you please take another look at this PR