E2e Swap Api mockup response for suggestedGasFees (#13991)

* Mock Suggested Gas Fees response

* Included Option request mocked

* Update suggestedGasFee mock response

test/e2e/mock-e2e.js

@@ -20,6 +20,43 @@ async function setupMocking(server, testSpecificMock) {
     };
   });
 
+  await server
+    .forGet(
+      'https://gas-api.metaswap.codefi.network/networks/1/suggestedGasFees',
+    )
+    .thenCallback(() => {
+      return {
+        statusCode: 200,
+        json: {
+          low: {
+            suggestedMaxPriorityFeePerGas: '1',
+            suggestedMaxFeePerGas: '20.44436136',
+            minWaitTimeEstimate: 15000,
+            maxWaitTimeEstimate: 30000,
+          },
+          medium: {
+            suggestedMaxPriorityFeePerGas: '1.5',
+            suggestedMaxFeePerGas: '25.80554517',
+            minWaitTimeEstimate: 15000,
+            maxWaitTimeEstimate: 45000,
+          },
+          high: {
+            suggestedMaxPriorityFeePerGas: '2',
+            suggestedMaxFeePerGas: '27.277766977',
+            minWaitTimeEstimate: 15000,
+            maxWaitTimeEstimate: 60000,
+          },
+          estimatedBaseFee: '19.444436136',
+          networkCongestion: 0.14685,
+          latestPriorityFeeRange: ['0.378818859', '6.555563864'],
+          historicalPriorityFeeRange: ['0.1', '248.262969261'],
+          historicalBaseFeeRange: ['14.146999781', '28.825256275'],
+          priorityFeeTrend: 'down',
+          baseFeeTrend: 'up',
+        },
+      };
+    });
+
   testSpecificMock(server);
 }