[Snyk] Security upgrade ubuntu from impish-20211015 to rolling

[snyk-bot]

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• Dockerfile

We recommend upgrading to ubuntu:rolling, as this image has only 19 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	371	CVE-2021-3996 SNYK-UBUNTU2110-UTILLINUX-2387725	No Known Exploit
	371	CVE-2021-3996 SNYK-UBUNTU2110-UTILLINUX-2387725	No Known Exploit
	371	CVE-2021-3995 SNYK-UBUNTU2110-UTILLINUX-2387730	No Known Exploit
	371	CVE-2021-3995 SNYK-UBUNTU2110-UTILLINUX-2387730	No Known Exploit
	371	CVE-2021-3995 SNYK-UBUNTU2110-UTILLINUX-2387730	No Known Exploit

---

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.

For more information: 🧐 View latest project report

🛠 Adjust project settings

[pull-dog[bot]]

*Ruff* :dog: I wasn't able to find any Docker Compose files in your repository at any of the given paths in the pull-dog.json configuration file, or the default docker-compose.yml file :weary: Make sure the given paths are correct.

Files checked:

• docker-compose.yml

What is this?

Pull Dog is a GitHub app that makes test environments for your pull requests using Docker, from a `docker-compose.yml` file you specify. It takes 19 seconds to set up (we counted!) and there's a free plan available. Visit our website to learn more.

Commands

- `@pull-dog up` to reprovision or provision the server. - `@pull-dog down` to delete the provisioned server.

Troubleshooting

Need help? Don't hesitate to file an issue in our repository **Configuration** ```json { "isLazy": false, "dockerComposeYmlFilePaths": [ "docker-compose.yml" ], "expiry": "00:00:00", "conversationMode": "singleComment" } ``` **Trace ID** e3da0e90-84ad-11ec-9d20-f93cedffe131