Fix testCreateTableIndexWithWhere to look up the query by content (#1085)

The test was hardcoding queries[2] to find the CREATE UNIQUE INDEX
output. The dryrun message buffer now contains additional phinxlog
setup messages before the create-index call, so the position drifted
and the test failed locally. Look the query up by its expected prefix
instead, which makes the test robust to ordering changes around it.

Author: dereuromark

tests/TestCase/Db/Adapter/SqliteAdapterTest.php

@@ -378,7 +378,13 @@ public function testCreateTableIndexWithWhere(): void
               ->addIndex($index)
               ->save();
         $queries = $this->out->messages();
-        $indexQuery = $queries[2];
+        $indexQuery = '';
+        foreach ($queries as $query) {
+            if (str_contains($query, 'CREATE UNIQUE INDEX "table1_email_index"')) {
+                $indexQuery = $query;
+                break;
+            }
+        }
         $this->assertStringContainsString('CREATE UNIQUE INDEX "table1_email_index"', $indexQuery);
         $this->assertStringContainsString('("email" ASC) WHERE is_verified = true', $indexQuery);
     }