Cannot override secondary artifact name

According to documentation, the following artifacts should be stored in an identical matter:
```
[...]
artifactTypeOverride: 'S3',
artifactLocationOverride: "${S3_BUCKET}",
artifactPathOverride: "${PATH}",
artifactNamespaceOverride: 'NONE',
artifactNameOverride: "foo.zip",
artifactPackagingOverride: 'ZIP',
secondaryArtifactsOverride: """[
{
"artifactIdentifier": "sources",
"type": "S3",
"location": "${S3_BUCKET}",
"path": "${PATH}",
"namespaceType": "NONE",
"name": "bar.zip",
"overrideArtifactName": "true",
"packaging": "ZIP"
}
]""",
[...]
```

However, while the main artifact is correctly renamed to `foo.bar`, the secondary artifact name remains as defined in the codebuild buildspec. Running `file` on the secondary artifact shows that it is a zip archive, so it is just the naming part that's not working.

Reproduce the shown artifactTypeOverride and secondaryArtifactsOverride configuration in the Jenkins CodeBuild build step, then trace how the secondary artifact name override is handled. Done means the secondary artifact is emitted as bar.zip rather than the buildspec name, while remaining a ZIP archive.

Written by the indexing model from the issue text.