With PhpUnit 10 came the ability to use Php attributes rather than doc-block annotations for things like "data provider". PhpUnit 11 deprecates the use of annotations, and PhpUnit 12 will not not permit their use. Since PhpUnit 11 requires Php8.2+, we cannot adopt it as long as we support Php8.1, which will continue to be the case for some time. However, there is no penalty for early adoption.
Php-cs-fixer can use:
```
'php_unit_attributes' => ['keep_annotations' => false],
```
This allows us to run `composer fix` to automate all the needed changes. No manual changes were needed for any of the test members.
With this change, PhpUnit 9 can no longer be used with the test suite. File composer.json is updated to reflect that reality, and phpunit9.xml.dist, which has been supplied in case anyone needed to use PhpUnit 9, is no longer required, and is thus deleted. For now, PhpUnit 11 is not being added as a possibility.
No source code is changed in this PR.
While we might never be able to have 100% of our code strict, we can at
the very least do it for all of our tests. This ensures that our tests
are using our API with the types as intended by the test author, and not
silently be cast to what our API requires.
* Avoid Allocating RowDimension Unneccesarily
This PR builds on PR #3527, introduced but subsequently closed by @goetas. The observation was that AutoFilter did not need to allocate a new RowDimension when the row was not to be filtered. While vetting the PR, it became apparent that Xlsx Writer also allocates RowDimension unnecessarily, with some minor adjustments possible for Ods and Mpdf as well. My tests confirm the initial observation that there can be a considerable memory savings when RowDimension is allocated only when needed. So, even though the original PR is withdrawn, there seems to be value in proceeding with it anyhow.
* Add Some Tests
oleibman
Adrien Crivelli