Timing based tests are inherently flakey and prone to failure on slow CI:
> Test case 'MGLDocumentationExampleTests.testMGLMapSnapshotter()' failed on 'iPhone X' (3.375 seconds)
> Test case 'MGLDocumentationExampleTests.testMGLMapSnapshotter()' failed on 'iPhone 8' (3.413 seconds)
> Test case 'MGLDocumentationExampleTests.testMGLMapSnapshotter()' failed on 'iPhone 7' (2.944 seconds)