Change DebugText to CHAR_STRING once strings are supported in command/response f...

[todo]

connectedhomeip/src/app/clusters/operational-credentials-server/operational-credentials-server.cpp

Lines 343 to 353 in d97b1e8

	// TODO: Change DebugText to CHAR_STRING once strings are supported in command/response fields
	ReturnErrorOnFailure(writer->Put(TLV::ContextTag(2), debug_text));
	return commandObj->FinishCommand();
	}
	EmberAfNodeOperationalCertStatus ConvertToNOCResponseStatus(CHIP_ERROR err)
	{
	if (err == CHIP_NO_ERROR)
	{
	return EMBER_ZCL_NODE_OPERATIONAL_CERT_STATUS_SUCCESS;
	}

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This issue was generated by todo based on a TODO comment in d97b1e8 when #8334 was merged. cc @pan-apple.