Dependencies for maven project only resolved for cyclonedx, not for spdx/json

### Description

Dependencies/Packages from a maven pom.xml are only detected when outputting to cyclone-dx-xml, but not when outputting to json or spdx-tv or spdx-xml.

Im not sure if this is a missing feature that is only implemented in cyclonedx or a bug?

### How To Reproduce

I created a Hello-World-Style java project with the following dependency included in pom.xml

```xml

log4j
log4j
1.2.17

```
Running scancode like so:

```bash
scancode -clpieu --spdx-tv ../../scancode-java.spdx.tv ../../Log4J-example-with-java --max-depth 0 --consolidate
```

Yields an SBOM which only includes "Files" and the main Package

```
# Package

PackageName: log4j_example_with_java
SPDXID: SPDXRef-001
PackageDownloadLocation: NOASSERTION
PackageVerificationCode: daf7c31358a7967f856b9a0eda8bee2f61abde16
PackageLicenseDeclared: NOASSERTION
PackageLicenseConcluded: NOASSERTION
PackageLicenseInfoFromFiles: NONE
PackageCopyrightText: NONE

# File
FileName: ./Log4J-example-with-java/.idea/compiler.xml
SPDXID: SPDXRef-6
FileChecksum: SHA1: 5deee417bc8e462aa80f979e9fb353f707df9b1f
LicenseConcluded: NOASSERTION
LicenseInfoInFile: NONE
FileCopyrightText: NONE

# ...
```

Same goes for the JSON output.

CycloneDX however correctly includes the log4j dependency:

```bash
scancode -clpieu --cyclonedx ../../scancode-java.json.cdx ../../Log4J-example-with-java --max-depth 0 --consolidate
```

```xml

```

### System configuration

5.13.0-27-generic #29-Ubuntu SMP Wed Jan 12 17:36:47 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

ScanCode version 30.1.0

ScanCode Output Format version 2.0.0

SPDX License list version 3.15