Add version to web pages

[talavis]

Before submitting the PR, please go through the sections below and fill in what you can. If there are any items that are irrelevant for the current PR, remove the row. If a relevant option is missing, please add it as an item and add a PR comment informing that the new option should be included into this template.

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Description

• Set the version tag from GIthub to the environment variable DDS_VERSION inside the built containers
• Add the version tag from DDS_VERSION to the footer of all web pages.

Implements DDS-1343.

• Add a summary of the changes and the related issue
• Fixes [link to issue / Jira issue ID]

Type of change

• Workflow
• New feature (non-breaking)

Checklist:

General

• Changelog: New row added. Not needed when PR includes only tests.
• Code change
  • Self-review of code done
  • Comments added, particularly in hard-to-understand areas

Repository / Releases

• Rebase / update of branch done

Checks

• Formatting: Black & Prettier checks pass
• CodeQL passes
• Trivy / Snyk:
  • There are no new security alerts

[i-oden]

Looks good!