ExceptionFormatterSpec: filter GJS stack frames in AggregateError test

GJS adds internal frames like 'setTimeout/source' and
'GLib.MainLoop.prototype.runAsync' to stack traces. The test 'includes
all aggregated errors in the stack trace' expects exactly 10 lines after
filtering, but in GJS there are extra frames that the existing filters
don't catch.

Add a filter for 'resource:///org/gnome/gjs/' to exclude GJS internal
frames from the line count check.

Author: amezin

spec/core/ExceptionFormatterSpec.js

@@ -380,7 +380,9 @@ describe('ExceptionFormatter', function() {
           x =>
             !x.match(/[\/\\]jasmine\.js:/) &&
             // Some Node 20 and 22 minors when running in parallel
-            !x.includes('process.processTicksAndRejections')
+            !x.includes('process.processTicksAndRejections') &&
+            // GJS internal frames
+            !x.includes('resource:///org/gnome/gjs/')
         );
 
         for (let i = 0; i < filteredLines.length; i++) {