Handle identified JAR Packages from `pkg:osgi/` and `pkg:jar/` to `pkg:maven/`

Certain jar packages are identified as `pkg:osgi/` or `pkg:jar/` instead of `pkg:maven/`.

For example:

* purl: pkg:osgi/org.eclipse.sisu.plexus@0.3.5
name: org.eclipse.sisu.plexus-0.3.5.jar
download_url: https://repo1.maven.org/maven2/org/eclipse/sisu/org.eclipse.sisu.plexus/0.3.5/org.eclipse.sisu.plexus-0.3.5.jar

* purl: pkg:jar/spring-aop@6.0.18
name: spring-aop-6.0.18.jar
download_url: https://repo1.maven.org/maven2/org/springframework/spring-aop/6.0.18/spring-aop-6.0.18.jar

This discrepancy may arise because these jars lack a pom.xml file.
However, from the VCIO perspective, the purl should be converted to `pkg:maven/`
i.e.
```
pkg:maven/org.eclipse.sisu/org.eclipse.sisu.plexus@0.3.5
pkg:maven/org.springframework/spring-aop@6.0.18
```