chore: remove unused types devDeps

[inferrinizzard]

Description

Removes @types/yaml and @types/js-base64 as types are now included in the base packages

Motivation and Context

Resolves this warning on build:

Run npm ci
npm WARN deprecated @types/[email protected]: This is a stub types definition. js-base64 provides its own type definitions, so you do not need this installed.
npm WARN deprecated @types/[email protected]: This is a stub types definition. yaml provides its own type definitions, so you do not need this installed.

Previous Behaviour / Output

N/a

New Behaviour / Output

N/a

How Has This Been Tested?

Screenshots (if appropriate):