Bump org.neo4j:neo4j from 4.4.4 to 5.26.21 in /iped-engine

Bumps [org.neo4j:neo4j](https://github.com/neo4j/neo4j) from 4.4.4 to 5.26.21.
- [Release notes](https://github.com/neo4j/neo4j/releases)
- [Commits](neo4j/neo4j@4.4.4...5.26.21)

---
updated-dependencies:
- dependency-name: org.neo4j:neo4j
  dependency-version: 5.26.21
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

iped-engine/pom.xml

@@ -272,7 +272,7 @@
         <dependency>
             <groupId>org.neo4j</groupId>
             <artifactId>neo4j</artifactId>
-            <version>4.4.4</version>
+            <version>5.26.21</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.slf4j</groupId>