[Snyk] Security upgrade ruby from 3.1.2-alpine to 3.3.6-alpine

[CxsLucyfer]

Snyk has created this PR to fix 4 vulnerabilities in the dockerfile dependencies of this project.

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

Snyk changed the following file(s):

• src/emailservice/Dockerfile

We recommend upgrading to ruby:3.3.6-alpine, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Out-of-bounds Write SNYK-ALPINE316-NCURSES-5606597	614
	Out-of-bounds Write SNYK-ALPINE316-NCURSES-5606597	614
	Double Free SNYK-ALPINE316-OPENSSL-3314624	614
	Access of Resource Using Incompatible Type ('Type Confusion') SNYK-ALPINE316-OPENSSL-3314641	614
	Use After Free SNYK-ALPINE316-OPENSSL-3314643	614

---

Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

---

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
📜 Customise PR templates
🛠 Adjust project settings
📚 Read about Snyk's upgrade logic

---

Learn how to fix vulnerabilities with free interactive lessons:

🦉 Double Free
🦉 Access of Resource Using Incompatible Type ('Type Confusion')
🦉 Use After Free