feat(datahub-frontend): add client-cert-based authentication for oidc

[manuschillerdev]

• The PR conforms to DataHub's Contributing Guideline (particularly PR Title Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable). If a new feature has been added a Usage Guide has been added for the same.
• For any breaking change/potential downtime/deprecation/big changes an entry has been made in Updating DataHub

[aikido-pr-checks]

Exposed secret in datahub-frontend/test/resources/test-private-key-encrypted.pem - low severity
Identified a Private Key, which may compromise cryptographic security and sensitive data encryption.
^{View details in Aikido Security}

[aikido-pr-checks]

Exposed secret in datahub-frontend/test/resources/test-private-key.pem - low severity
Identified a Private Key, which may compromise cryptographic security and sensitive data encryption.
^{View details in Aikido Security}