Dependabot alerts: npm audit fix

[Zsar]

Description

Fixes:

• Improper Verification of Cryptographic Signature in node-forge
• json-schema is vulnerable to Prototype Pollution
• Open Redirect in node-forge
• Prototype Pollution in minimist

Recommend releasing bugfix version, as some of these are Critical(TM).

FWIW: npm disagreed with Dependabot's assertion that breaking changes be required - this is a plain npm audit fix. Updating webpack-dev-server as advised did not result in further fixes (and thence is not included).
... Hopefully npm got it right and Dependabot is wrong.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules