Add SAST logs to OCM component descriptor

[MartinWeindel]

What this PR does / why we need it:
Add SAST logs to OCM component descriptor

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Release note:

NONE

[gardener-robot-ci-2]

This PR proposes changes that would break the pipeline definition:

gardener-extension-shoot-cert-service-enh_component-descriptor-sast-assets: Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/concourse/replicator.py", line 141, in render
    definition_descriptor = self._render(definition_descriptor)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/concourse/replicator.py", line 185, in _render
    'definition': factory.create_pipeline_definition(),
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/concourse/factory.py", line 88, in create_pipeline_definition
    self._apply_traits(variant)
  File "/usr/lib/python3.12/site-packages/concourse/factory.py", line 177, in _apply_traits
    transformer.process_pipeline_args(pipeline_def)
  File "/usr/lib/python3.12/site-packages/concourse/model/traits/release.py", line 495, in process_pipeline_args
    raise ValueError(f'{asset=}\'s step_name refers to an absent build-step')
ValueError: asset=BuildstepLogAsset(ocm_labels=[{'name': 'gardener.cloud/purposes', 'value': ['lint', 'sast', 'gosec']}, {'name': 'gardener.cloud/comment', 'value': 'we use gosec (linter) for SAST scans\nsee: https://github.com/securego/gosec\nenabled by https://github.com/gardener/gardener-extension-shoot-cert-service/pull/302\n'}], type='build-step-log', name='verify-build-step', step_name='verify', artefact_type='application/data', purposes=['lint', 'sast', 'gosec'], comment='we use gosec (linter) for SAST scans\nsee: https://github.com/securego/gosec\nenabled by https://github.com/gardener/gardener-extension-shoot-cert-service/pull/302\n')'s step_name refers to an absent build-step

[gardener-robot-ci-2]

The pipeline-definition has been fixed.

[ScheererJ]

/lgtm