[charts/portal] 5.2.1 release

[melil02]

Description of the change

5.2.1 release

Benefits

Update of containers to latest release

Drawbacks

None Applicable issues

None

Additional information

Checklist

• [X] Chart version bumped in Chart.yaml according to semver.
• [X] Variables are documented in the README.md
• [X] Title of the PR starts with chart name (e.g. [charts/gateway])
• [X] If the chart contains a values-production.yaml apart from values.yaml, ensure that you implement the changes in both files