adds permissions to gh workflow and fixes neo4j configuration

Author: kornelrabczak

.github/workflows/ci-cd.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ "main" ]
 
+permissions:
+  contents: read
+
 jobs:
   build-and-test:
     name: Build and Test

src/main/java/com/example/memory/infrastructure/config/EmbeddedNeo4jConfig.java

@@ -2,6 +2,9 @@
 
 import org.neo4j.harness.Neo4j;
 import org.neo4j.harness.Neo4jBuilders;
+import org.neo4j.driver.AuthTokens;
+import org.neo4j.driver.Driver;
+import org.neo4j.driver.GraphDatabase;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
@@ -29,4 +32,10 @@ public Neo4j embeddedNeo4jServer() {
                 .withFixture("MERGE (n:Entity {name: 'Root', type: 'System'})")
                 .build();
     }
+
+    @Bean
+    @ConditionalOnProperty(name = "spring.neo4j.uri", matchIfMissing = true, havingValue = "embedded")
+    public Driver neo4jDriver(Neo4j neo4j) {
+        return GraphDatabase.driver(neo4j.boltURI(), AuthTokens.none());
+    }
 }