Sudden failure to decrypt the OSS Index API Token

### Current Behavior

We're seeing something that resembles an expiration of the OSS Index API Token: after running without issues for a couple of days with our API Token (created at https://ossindex.sonatype.org/user/settings) , we suddenly see messages such as these in the logs:

`2022-12-28 08:00:27,749 ERROR [OssIndexAnalysisTask] An error occurred decrypting the OSS Index API Token. Skipping
javax.crypto.BadPaddingException: Given final block not properly padded. Such issues can arise if a bad key is used during decryption.
at java.base/com.sun.crypto.provider.CipherCore.unpad(Unknown Source)
at java.base/com.sun.crypto.provider.CipherCore.fillOutputBuffer(Unknown Source)
at java.base/com.sun.crypto.provider.CipherCore.doFinal(Unknown Source)
at java.base/com.sun.crypto.provider.AESCipher.engineDoFinal(Unknown Source)
at java.base/javax.crypto.Cipher.doFinal(Unknown Source)
at alpine.security.crypto.DataEncryption.decryptAsBytes(DataEncryption.java:136)
at alpine.security.crypto.DataEncryption.decryptAsBytes(DataEncryption.java:148)
at alpine.security.crypto.DataEncryption.decryptAsString(DataEncryption.java:176)
at org.dependencytrack.tasks.scanners.OssIndexAnalysisTask.inform(OssIndexAnalysisTask.java:138)
at org.dependencytrack.tasks.VulnerabilityAnalysisTask.performAnalysis(VulnerabilityAnalysisTask.java:169)
at org.dependencytrack.tasks.VulnerabilityAnalysisTask.analyzeComponents(VulnerabilityAnalysisTask.java:128)
at org.dependencytrack.tasks.VulnerabilityAnalysisTask.inform(VulnerabilityAnalysisTask.java:77)
at alpine.event.framework.BaseEventService.lambda$publish$0(BaseEventService.java:101)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
`

When this happens no new (OSS Index fed) vulnerabilities are detected until we create a new API token and and set it in /admin -> Analyzers -> Sonatype OSS Index

### Steps to Reproduce

1. Create an API Token at https://ossindex.sonatype.org/user/settings
2. Enter the API token in /admin -> Analyzers -> Sonatype OSS Index
3. Let DTrack run for a while (a week or two) while you upload SBOMs
4. Check the logs

### Expected Behavior

The OSS Index API Token never "expires"

### Dependency-Track Version

4.7.0

### Dependency-Track Distribution

Container Image

### Database Server

PostgreSQL

### Database Server Version

13.7

### Browser

N/A

### Checklist

- [X] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#filing-issues)
- [X] I have checked the [existing issues](https://github.com/DependencyTrack/dependency-track/issues) for whether this defect was already reported