Overrides commonName Helm chart value

What does this MR do?

To allow for the CI_ENVIRONMENT_URL to be > 64 bytes, we only need to set a common name less than 64 bytes for Let's Encrypt certificate.

At the moment, the common name is defined by the first host that appears in our Ingress Helm Chart (service.url). The proposed solution is to set a small url to be first in the list of hosts. In the Ingress Helm chart we will create a default value called commonName that will be used to set this url.

What are the relevant issue numbers?

Closes #55820 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated via this MR
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Tested in all supported browsers
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• Security reports checked/validated by reviewer

Closes #55820 (closed)