CI: Fix main branch CI test failure (#18792)

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- Closes #.

## Rationale for this change

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A recently merged PR X changed some output format, and a later merged PR
Y is assuming the older format, causing test failure.
This PR updates the format to pass the test.

(Question: I don't fully understand how the merge queue work, but is
there any mechanism in the merge queue to prevent this kind of issue? 🤔
)

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Author: 2010YOUY01

datafusion/core/tests/sql/explain_analyze.rs

@@ -887,7 +887,7 @@ async fn parquet_explain_analyze() {
         &formatted,
         "row_groups_pruned_statistics=1 total \u{2192} 1 matched"
     );
-    assert_contains!(&formatted, "scan_efficiency_ratio=14% (259/1851)");
+    assert_contains!(&formatted, "scan_efficiency_ratio=14%");
 
     // The order of metrics is expected to be the same as the actual pruning order
     // (file-> row-group -> page)