Remove labelOperator

[angrykoala]

Remove labelOperator, all labels will now use operator &

No longer supported:

const { cypher, params } = matchQuery.build({
    labelOperator: "&",
});

Before

MATCH (this1:Movie:Film)

After

MATCH (this1:Movie&Film)

[changeset-bot]

🦋 Changeset detected

Latest commit: 7c47adb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@neo4j/cypher-builder	Major

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud