Increases the wait time for a breaking test (#3419)

Task/Issue URL: https://app.asana.com/0/0/1208389158134600/f

## Description

Increases the wait time for a breaking test. Locally the test works just
fine so I'm guessing it's something with the CI making the test slower.

DuckDuckGoTests/ContextualDaxDialogsFactoryTests.swift

@@ -353,7 +353,7 @@ extension ContextualDaxDialogsFactoryTests {
         XCTAssertNotNil(host.view)
 
         // THEN
-        waitForExpectations(timeout: 2.0)
+        waitForExpectations(timeout: 10.0)
         XCTAssertTrue(pixelReporterMock.didCallTrackScreenImpressionCalled)
         XCTAssertEqual(pixelReporterMock.capturedScreenImpression, event)
     }