build(deps): bump org.neo4j.driver:neo4j-java-driver-slim (#179)

Bumps org.neo4j.driver:neo4j-java-driver-slim from 4.4.20 to 4.4.21.

---
updated-dependencies:
- dependency-name: org.neo4j.driver:neo4j-java-driver-slim
  dependency-version: 4.4.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -58,7 +58,7 @@
         <maven-site-plugin.version>3.21.0</maven-site-plugin.version>
         <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
         <maven-surefire-plugin.version>3.5.4</maven-surefire-plugin.version>
-        <neo4j-java-driver.version>4.4.20</neo4j-java-driver.version>
+        <neo4j-java-driver.version>4.4.21</neo4j-java-driver.version>
         <netty-bom.version>4.1.127.Final</netty-bom.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <reactive-streams.version>1.0.4</reactive-streams.version>