edge v1.1 authorization migration

Changes

removed accessTokenUrl and replaced clientSecret with apiKey for edge store; this is required because the rollout of v1.1 with authorization header changes means Edge users can no longer generate a accessTokenUrl or clientSecret https://learn.microsoft.com/en-us/microsoft-edge/extensions-chromium/publish/api/using-addons-api?tabs=v1-1#versions-of-the-update-rest-api
minor version bump for edge-addons-api, bms, and bpp
updated pnpm version to mitigate breaking lockfile changes
updated github actions, bumped workflows to node v20 to silence github warnings regarding pnpm