fix: Sample rowkey generic header conformance test (#1550)

Grab app profiled id from client to fix conformance test

Author: kevkim-codes

testproxy/known_failures.txt

@@ -18,6 +18,5 @@ TestReadRows_Retry_WithRetryInfo_MultipleErrorResponse\|
 TestCheckAndMutateRow_NoRetry_TransientError\|
 TestCheckAndMutateRow_Generic_DeadlineExceeded\|
 TestCheckAndMutateRow_Generic_Headers\|
-TestSampleRowKeys_Generic_Headers\|
 TestSampleRowKeys_Generic_DeadlineExceeded\|
 TestSampleRowKeys_Retry_WithRoutingCookie

testproxy/services/sample-row-keys.js

@@ -23,9 +23,10 @@ const sampleRowKeys = ({clientMap}) =>
   normalizeCallback(async rawRequest => {
     const {request} = rawRequest;
     const {request: sampleRowKeysRequest} = request;
-    const {appProfileId, tableName} = sampleRowKeysRequest;
-
+    const {tableName} = sampleRowKeysRequest;
     const {clientId} = request;
+
+    const appProfileId = clientMap.get(clientId).appProfileId;
     const client = clientMap.get(clientId)[v2];
     const samples = await new Promise((res, rej) => {
       const response = [];