Fix flaky test QuickAccessComputerTest.testQuickAccessComputer

[vogella]

Increased timeout from 2000ms to 5000ms to avoid intermittent failures on slower CI systems. Added assertion message for better debugging.

[eclipse-platform-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

tests/org.eclipse.text.quicksearch.tests/META-INF/MANIFEST.MF

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From 76b0d36d368066e5b0954764f0ce4a9e0e5a2599 Mon Sep 17 00:00:00 2001
From: Eclipse Platform Bot <platform-bot@eclipse.org>
Date: Tue, 6 Jan 2026 16:35:32 +0000
Subject: [PATCH] Version bump(s) for 4.39 stream


diff --git a/tests/org.eclipse.text.quicksearch.tests/META-INF/MANIFEST.MF b/tests/org.eclipse.text.quicksearch.tests/META-INF/MANIFEST.MF
index 0a788b4950..7c8d106877 100644
--- a/tests/org.eclipse.text.quicksearch.tests/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.text.quicksearch.tests/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.text.quicksearch.tests
-Bundle-Version: 1.3.100.qualifier
+Bundle-Version: 1.3.200.qualifier
 Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.text.quicksearch;bundle-version="1.0.300",
  org.eclipse.core.resources,
-- 
2.52.0

Further information are available in Common Build Issues - Missing version increments.

[github-actions]

Test Results

 3 015 files  ±0   3 015 suites  ±0   2h 7m 20s ⏱️ - 4m 36s
 8 258 tests ±0   8 010 ✅ +1  248 💤 ±0  0 ❌  - 1 
23 598 runs  ±0  22 807 ✅ +1  791 💤 ±0  0 ❌  - 1 

Results for commit ebe65c5. ± Comparison against base commit ed45ed2.