Log Message:
py-cyclonedx-python-lib: update to 9.1.0.

9.1.0

What's Changed

    feat: VulnerabilityAnalysis properties for issued/updated datetime by \ 
@indiVar0508 in #794
    fix: improved comparison functionality of model.VulnerabilityAnalysis by \ 
@jkowalleck in #795

## v9.0.0 (2025-02-26)

### Breaking

* feat!: 9.0.1 (#777)

### BREAKING Changes

* Fix: `model.vulnerability.VulnerabilityReference`'s properties are all
mandatory ([#790] via [#792]
* Refactor: Rename `spdx.is_compund_expression` -> `spdx.is_expression`
([#779]
* Behavior: `BomRef` affects comparison/hashing ([#754] [#780]
  This is only a breaking change if you relied on ordering of elements.
* Behavior: streamline comparison/hashing functions ([#755]
  This is only a breaking change if you relied on ordering of elements.
* Dependency: bump dependency `py-serializable >=2 <3`, was `>=1.1.1 \ 
<2` ([#775]
This is only a breaking change if you have other packages depend on that
specific version.

## v8.9.0 (2025-02-25)

### Documentation

* docs:  extended instructions for &#34;contributing&#34; (#783)

supersedes
https://github.com/CycloneDX/cyclonedx-python-lib/pull/773/files#r1954324461

### Feature

* feat: avoid raising `NoPropertiesProvidedException` for optional parameters (#786)

the following classes&#39; init no longer raise `NoPropertiesProvidedException`:
* `cyclonedx.model.IdentifiableAction`
* `cyclonedx.model.component.Commit`
* `cyclonedx.model.component.ComponentEvidence`
* `cyclonedx.model.component.Diff`
* `cyclonedx.model.component.Pedigree`
* `cyclonedx.model.issue.IssueTypeSource`
* `cyclonedx.model.vulnerability.VulnerabilityAnalysis`
* `cyclonedx.model.vulnerability.VulnerabilityCredits`
* `cyclonedx.model.vulnerability.VulnerabilityRating`
* `cyclonedx.model.vulnerability.VulnerabilitySource`