print requested capabilities in SessionNotCreatedException (#11604)

without this change, `SessionNotCreatedException` always prints out empty capabilities:

```
org.openqa.selenium.SessionNotCreatedException: Could not start a new session...
Host info: ...
Build info: version: '4.8.0'...
System info: ...
Driver info: ...
Command: [null, newSession...}]
Capabilities {}

	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:561)
```

java/src/org/openqa/selenium/remote/RemoteWebDriver.java

@@ -147,7 +147,7 @@ public RemoteWebDriver(URL remoteAddress, Capabilities capabilities, boolean ena
 
   public RemoteWebDriver(CommandExecutor executor, Capabilities capabilities) {
     this.executor = Require.nonNull("Command executor", executor);
-    capabilities = init(capabilities);
+    this.capabilities = init(capabilities);
 
     if (executor instanceof NeedsLocalLogs) {
       ((NeedsLocalLogs) executor).setLocalLogs(localLogs);