Pipeline fails to find the report for datastax 4.18.1

[Bouncheck]

The test itself succeeds, but there is no .xml in "Build Artifacts" like for other versions.

From https://jenkins.scylladb.com/job/scylla-master/job/driver-tests/job/java-driver-matrix-test/1547/consoleFull :

00:22:54  [INFO] Results:
00:22:54  [INFO] 
00:22:54  [WARNING] Tests run: 1432, Failures: 0, Errors: 0, Skipped: 62
00:22:54  [INFO] 
00:22:54  [INFO] ------------------------------------------------------------------------
00:22:54  [INFO] BUILD SUCCESS
00:22:54  [INFO] ------------------------------------------------------------------------
00:22:54  [INFO] Total time:  13:34 min
00:22:54  [INFO] Finished at: 2025-01-19T23:22:53Z
00:22:54  [INFO] ------------------------------------------------------------------------
00:22:54  INFO:root:All tests are passed for '4.18.1' version
00:22:54  ERROR:root:4.18.1 failed
00:22:54  Traceback (most recent call last):
00:22:54    File "/jenkins/workspace/scylla-master/driver-tests/java-driver-matrix-test/scylla-java-driver-matrix/main.py", line 31, in main
00:22:54      report = runner.run()
00:22:54               ^^^^^^^^^^^^
00:22:54    File "/jenkins/workspace/scylla-master/driver-tests/java-driver-matrix-test/scylla-java-driver-matrix/run.py", line 183, in run
00:22:54      metadata_file.write_text(json.dumps(metadata))
00:22:54    File "/usr/local/lib/python3.11/pathlib.py", line 1078, in write_text
00:22:54      with self.open(mode='w', encoding=encoding, errors=errors, newline=newline) as f:
00:22:54           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
00:22:54    File "/usr/local/lib/python3.11/pathlib.py", line 1044, in open
00:22:54      return io.open(self, mode, buffering, encoding, errors, newline)
00:22:54             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
00:22:54  FileNotFoundError: [Errno 2] No such file or directory: '/jenkins/workspace/scylla-master/driver-tests/java-driver-matrix-test/scylla-java-driver-matrix/reports/metadata_4.18.1.json'

[Bouncheck]

Turns out the version is irrelevant. The issue was that the directory would not be created until first failure or somehow accessing a summary field in another class.
Resolved by #78