failing tests for Drupal 10 and search

[finnlewis]

See https://github.com/localgovdrupal/localgov_project/actions/runs/6801440506/job/18529445965#step:5:20

Testing locally with @andybroomfield and we seem to have figured that the search in tests performs better with spaces separating multiple words, rather than + sign.

$this->drupalGet('search', ['query' => ['s' => 'bias dogma revelation']]);

rather than

$this->drupalGet('search', ['query' => ['s' => 'bias+dogma+revelation']]);

I will test and submit a pull request.

[markconroy]

@finnlewis Is this still an issue?