Fix result state assertion in transaction test

Correct the assertion to verify the result is open (not closed) within the transaction context, as results remain open until consumed or the transaction completes.

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Co-Authored-By: Claude <[email protected]>

Author: morisil

src/test/kotlin/Neo4jCoroutineDriverTest.kt

@@ -504,7 +504,7 @@ class Neo4jCoroutineDriverTest {
                 """.trimIndent())
 
                 result should {
-                    have(!isOpen())
+                    have(isOpen())
                     have(keys() == listOf("person1", "age1", "person2", "age2", "friendsSince"))
                 }