Issue #3310972 by phenaproxima: Release history fixtures are duplicated

...dates_extensions/tests/src/Functional/UpdaterFormTest.php

...tests/src/Kernel/Validator/UpdateReleaseValidatorTest.php

.../tests/fixtures/release-history/drupal.9.8.1-security.xml

...xtures/release-history/drupal.9.8.2-older-sec-release.xml

.../release-history/drupal.9.8.2-unsupported_unpublished.xml

...e_manager/tests/fixtures/release-history/drupal.9.8.2.xml

.../fixtures/release-history/drupal.9.8.2_unknown_status.xml

tests/fixtures/release-history/drupal.9.8.1-security.xml

...xtures/release-history/drupal.9.8.2-older-sec-release.xml

.../release-history/drupal.9.8.2-unsupported_unpublished.xml

tests/fixtures/release-history/drupal.9.8.2.xml

tests/src/Build/CoreUpdateTest.php

tests/src/Functional/AutomaticUpdatesFunctionalTestBase.php

tests/src/Functional/AvailableUpdatesReportTest.php

tests/src/Functional/ReadinessValidationTest.php

...Functional/UpdaterFormNoRecommendedReleaseMessageTest.php

tests/src/Functional/UpdaterFormTest.php

tests/src/Kernel/AutomaticUpdatesKernelTestBase.php

tests/src/Kernel/CronUpdaterTest.php

...Kernel/ReadinessValidation/CronFrequencyValidatorTest.php