Exception when Edge browser initialization is cancelled

[HeikoKlare]

Found in https://github.com/eclipse-platform/eclipse.platform.swt/pull/1737/checks?check_run_id=35840656393:

java.util.concurrent.CancellationException
	at java.base/java.util.concurrent.CompletableFuture.cancel(CompletableFuture.java:2510)
	at org.eclipse.swt.browser.Edge$WebViewProvider.abortInitialization(Edge.java:315)
	at org.eclipse.swt.browser.Edge.lambda$10(Edge.java:591)
	at org.eclipse.swt.browser.Edge.lambda$11(Edge.java:621)
	at org.eclipse.swt.browser.Edge.lambda$5(Edge.java:234)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(Native Method)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3688)
	at org.eclipse.swt.browser.Edge.processNextOSMessage(Edge.java:471)
	at org.eclipse.swt.browser.Edge$WebViewProvider.waitForFutureToFinish(Edge.java:447)
	at org.eclipse.swt.browser.Edge$WebViewProvider.getWebView(Edge.java:370)
	at org.eclipse.swt.browser.Edge.getUrl(Edge.java:883)
	at org.eclipse.swt.browser.Browser.getUrl(Browser.java:771)
	at org.eclipse.swt.tests.junit.Test_org_eclipse_swt_browser_Browser.createBrowser(Test_org_eclipse_swt_browser_Browser.java:309)
	at org.eclipse.swt.tests.junit.Test_org_eclipse_swt_browser_Browser.setUp(Test_org_eclipse_swt_browser_Browser.java:185)

[HeikoKlare]

This was an unintended abortion in the initialization retry logic of Edge. It has been addressed via #1774