Fix integration tests related to index and contraint create/drop

The syntax for creating and droping constraint in Neo4j 5.0 changed. `ON` keyword was replace by `FOR` and `ASSERT` replaced by `REQUIRED`.

Author: bigmontz

packages/neo4j-driver/test/rx/summary.test.js

@@ -436,7 +436,7 @@ describe('#integration-rx summary', () => {
       return
     }
 
-    await verifyUpdates(runnable, 'CREATE INDEX on :Label(prop)', null, {
+    await verifyUpdates(runnable, 'CREATE INDEX FOR :Label(prop)', null, {
       nodesCreated: 0,
       nodesDeleted: 0,
       relationshipsCreated: 0,
@@ -467,12 +467,12 @@ describe('#integration-rx summary', () => {
     // first create the to-be-dropped index
     const session = driver.session()
     try {
-      await session.run('CREATE INDEX on :Label(prop)')
+      await session.run('CREATE INDEX FOR :Label(prop)')
     } finally {
       await session.close()
     }
 
-    await verifyUpdates(runnable, 'DROP INDEX on :Label(prop)', null, {
+    await verifyUpdates(runnable, 'DROP INDEX FOR :Label(prop)', null, {
       nodesCreated: 0,
       nodesDeleted: 0,
       relationshipsCreated: 0,
@@ -501,7 +501,7 @@ describe('#integration-rx summary', () => {
 
     await verifyUpdates(
       runnable,
-      'CREATE CONSTRAINT ON (book:Book) ASSERT book.isbn IS UNIQUE',
+      'CREATE CONSTRAINT FOR (book:Book) REQUIRE book.isbn IS UNIQUE',
       null,
       {
         nodesCreated: 0,
@@ -536,15 +536,15 @@ describe('#integration-rx summary', () => {
     const session = driver.session()
     try {
       await session.run(
-        'CREATE CONSTRAINT ON (book:Book) ASSERT book.isbn IS UNIQUE'
+        'CREATE CONSTRAINT FOR (book:Book) REQUIRE book.isbn IS UNIQUE'
       )
     } finally {
       await session.close()
     }
 
     await verifyUpdates(
       runnable,
-      'DROP CONSTRAINT ON (book:Book) ASSERT book.isbn IS UNIQUE',
+      'DROP CONSTRAINT FOR (book:Book) REQUIRE book.isbn IS UNIQUE',
       null,
       {
         nodesCreated: 0,