Record CHANGELOG entries for the first core release that will publish `@metamask/eth-json-rpc-provider`

- [ ] Record any user-facing changes and dependency version updates made to `@metamask/eth-json-rpc-provider` during the migration process and after its last release. 
  - [ ] List the migration of `@metamask/eth-json-rpc-provider` as an **ADDED** change.
- [ ] Record any user-facing changes made to other monorepo packages during the migration process in their respective CHANGELOGs.