tests: skip AMQP test_acknowledge always on CI

independent of Python versions, as the test is a bit flaky for unknown
reasons

Author: sebix

CHANGELOG.md

@@ -37,6 +37,7 @@ Please refer to the [NEWS](NEWS.md) for a list of changes which have an affect o
 - Replace `/opt/intelmq` example paths in bots with variable `VAR_STATE_PATH` for correct paths in LSB-path setups like with packages (PR#2587 by Sebastian Wagner).
 
 ### Tests
+- `intelmq.tests.lib.test_pipeline.TestAmqp.test_acknowledge`: Skip on all Python versions when running on CI (PR#2602 by Sebastian Wagner).
 - `.github/workflows/codespell.yml`, `debian-package.yml`, `regexploit.yml`: Upgrade to `ubuntu-latest` runners (PR#2602 by Sebastian Wagner).
 
 ### Tools

intelmq/tests/lib/test_pipeline.py

@@ -266,8 +266,7 @@ def test_reject(self):
         self.pipe.reject_message()
         self.assertEqual(SAMPLES['normal'][1], self.pipe.receive())
 
-    @unittest.skipIf(os.getenv('CI') == 'true' and sys.version_info[:2] in ((3, 8), (3, 11), (3, 12)),
-                     'Fails on CI with Python 3.8 and 3.11')
+    @unittest.skipIf(os.getenv('CI') == 'true', 'Fails on CI')
     def test_acknowledge(self):
         self.pipe.send(SAMPLES['normal'][0])
         self.pipe.receive()