Fix Cassandra41CCMCluster to preserve boolean config values as YAML booleans

The set_configuration_options method was calling str(v) on all values,
converting Python booleans (True) to the string 'True'. ruamel.yaml
then writes this as a quoted YAML string ('True') instead of the
boolean 'true'. When Cassandra's SnakeYAML parser tries to assign a
string to a boolean field in cassandra.yaml, it fails with a type
mismatch, causing Cassandra to refuse to start.

This caused the cluster startup to hang for ~15 min per test module
(CCM's wait_for_binary_proto timeout) even with JDK 11.

Fix: only stringify values for _in_ms and _in_kb keys where a unit
suffix must be appended.  For all other keys (booleans, integers,
strings) preserve the original Python type.

Also add timeout-minutes: 120 to tests-cassandra job as a safety net.

Co-authored-by: fruch <340979+fruch@users.noreply.github.com>

Author: Copilot

.github/workflows/integration-tests.yml

@@ -101,6 +101,7 @@ jobs:
     name: test cassandra ${{ matrix.event_loop_manager }} (${{ matrix.python-version }})
     if: "!contains(github.event.pull_request.labels.*.name, 'disable-integration-tests')"
     runs-on: ubuntu-24.04
+    timeout-minutes: 120
     strategy:
       fail-fast: false
       matrix:

tests/integration/__init__.py

@@ -1001,5 +1001,17 @@ def _get_config_val(self, k, v):
         return v
 
     def set_configuration_options(self, values=None, *args, **kwargs):
-        new_values = {self._get_config_key(k, str(v)):self._get_config_val(k, str(v)) for (k,v) in values.items()}
+        new_values = {}
+        for k, v in values.items():
+            new_key = self._get_config_key(k, str(v))
+            # Only convert the value to a string for duration (_in_ms) and size (_in_kb)
+            # options where a unit suffix must be appended.  For all other options
+            # (including booleans) preserve the original Python type so that ruamel.yaml
+            # writes a proper YAML scalar (e.g. ``true`` not ``'True'``).
+            if self.IN_MS_REGEX.match(k):
+                new_values[new_key] = "%sms" % v
+            elif self.IN_KB_REGEX.match(k):
+                new_values[new_key] = "%sKiB" % v
+            else:
+                new_values[new_key] = v
         super(Cassandra41CCMCluster, self).set_configuration_options(values=new_values, *args, **kwargs)