refactor tests after deprecations remove

src/Aggregation/Bucketing/DateRangeAggregation.php

tests/Unit/Aggregation/Bucketing/ChildrenAggregationTest.php

...it/Aggregation/Bucketing/DateHistogramAggregationTest.php

...s/Unit/Aggregation/Bucketing/DateRangeAggregationTest.php

tests/Unit/Aggregation/Bucketing/FilterAggregationTest.php

tests/Unit/Aggregation/Bucketing/FiltersAggregationTest.php

...Unit/Aggregation/Bucketing/GeoDistanceAggregationTest.php

...Unit/Aggregation/Bucketing/GeoHashGridAggregationTest.php

tests/Unit/Aggregation/Bucketing/GlobalAggregationTest.php

...s/Unit/Aggregation/Bucketing/Ipv4RangeAggregationTest.php

tests/Unit/Aggregation/Bucketing/MissingAggregationTest.php

tests/Unit/Aggregation/Bucketing/NestedAggregationTest.php

tests/Unit/Aggregation/Bucketing/RangeAggregationTest.php

...it/Aggregation/Bucketing/ReverseNestedAggregationTest.php

tests/Unit/Aggregation/Bucketing/SamplerAggregationTest.php

...Aggregation/Bucketing/SignificantTermsAggregationTest.php

tests/Unit/Aggregation/Bucketing/TermsAggregationTest.php

tests/Unit/Aggregation/Metric/CardinalityAggregationTest.php

tests/Unit/Aggregation/Metric/GeoBoundsAggregationTest.php

tests/Unit/Aggregation/Metric/GeoCentroidAggregationTest.php