FIX: Schema version in XML reports

[carlwilson]

• bumped schema version in XML reports to 1.9;
• bumped XML reporter version and release details; and
• patched tests.

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (rc/1.28@6036515). Click here to learn what that means. Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## rc/1.28 #849 +/- ## ========================================== Coverage ? 47.00% Complexity ? 1100 ========================================== Files ? 57 Lines ? 9079 Branches ? 1622 ========================================== Hits ? 4268 Misses ? 4280 Partials ? 531 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openpreserve). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openpreserve)

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