Update crypto-pouch library

[benlongstaff]

Update from using https://github.com/tahpot/crypto-pouch.git to the latest version of crypto-pouch (v4.0.1) this will remove some vulnerabilities in the elliptic package calvinmetcalf/crypto-pouch#76 that is currently being used.

Repositories requiring the change

package.json

• verida/datastore
• verida/verida-js
• verida/client-rn
• verida/vault-mobile-old

yarn.lock

• verida/verida-js

[tahpot]

I'll only update in the new library verida/packages/client-ts. Any changes will be merged into verida/client-rn.

Submitted a PR to allow initialising crypt-pouch with a user specified salt:
calvinmetcalf/crypto-pouch#80

I have created a feature branch to support this change (https://github.com/verida/verida-js/tree/feature/21-update-crypto-pouch). Tested and works locally as expected. Won't merge into main until the crypto-pouch PR is merged. We can optionally use the feature branch created in the forked repo if the PR isn't accepted in time (https://github.com/tahpot/crypto-pouch/tree/feature/support-key-import).

Updated task list:

• @verida/client-ts
• @verida/verida-rn