chore(deps): update dependency google-cloud-containeranalysis to v2.4…

….1 (#165)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [google-cloud-containeranalysis](https://github.com/googleapis/python-containeranalysis) | `==2.4.0` -> `==2.4.1` | [![age](https://badges.renovateapi.com/packages/pypi/google-cloud-containeranalysis/2.4.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/google-cloud-containeranalysis/2.4.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/google-cloud-containeranalysis/2.4.1/compatibility-slim/2.4.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/google-cloud-containeranalysis/2.4.1/confidence-slim/2.4.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/python-containeranalysis</summary>

### [`v2.4.1`](https://github.com/googleapis/python-containeranalysis/blob/master/CHANGELOG.md#&#8203;241-httpswwwgithubcomgoogleapispython-containeranalysiscomparev240v241-2021-07-26)

[Compare Source](https://github.com/googleapis/python-containeranalysis/compare/v2.4.0...v2.4.1)

</details>

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packages/google-cloud-containeranalysis/samples/snippets/requirements.txt

@@ -1,5 +1,5 @@
 google-cloud-pubsub==2.6.1
-google-cloud-containeranalysis==2.4.0
+google-cloud-containeranalysis==2.4.1
 grafeas==1.1.1
 pytest==5.3.0; python_version > "3.0"
 pytest==4.6.6; python_version < "3.0"