add: tests for grpc requests

[sanish-bruno]

Description

This is the test cases for grpc request as a followup to #5793

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[sid-bruno]

nitpick: but can we move the repeated locators to the tests/utils/page/locators.ts file and use that instead, easier to replace the locator if we change test id or classes or anything that we are using to locate. Not mandatory, mostly a suggestion

[sanish-bruno]

nitpick: but can we move the repeated locators to the tests/utils/page/locators.ts file and use that instead, easier to replace the locator if we change test id or classes or anything that we are using to locate. Not mandatory, mostly a suggestion

sure, i will keep this in mind, will make necessary changes