chore: enable tests on aztec-nr and contracts (#6162)

# Description

## Problem\*

Resolves <!-- Link to GitHub Issue -->

## Summary\*

Testing these again now that aztec-nr doesn't have 40k warnings.

## Additional Context



## Documentation\*

Check one:
- [ ] No documentation needed.
- [ ] Documentation included in this PR.
- [ ] **[For Experimental Features]** Documentation to be submitted in a
separate PR.

# PR Checklist\*

- [ ] I have tested the changes locally.
- [ ] I have formatted the changes with [Prettier](https://prettier.io/)
and/or `cargo fmt` on default settings.

.github/workflows/test-js-packages.yml

@@ -519,16 +519,12 @@ jobs:
       fail-fast: false
       matrix:
         project:
-         # Disabled as these are currently failing with many visibility errors
-         # - { repo: AztecProtocol/aztec-nr, path: ./ }
-         # - { repo: AztecProtocol/aztec-packages, path: ./noir-projects/noir-contracts }
-         # Disabled as aztec-packages requires a setup-step in order to generate a `Nargo.toml`
-         #- { repo: AztecProtocol/aztec-packages, path: ./noir-projects/noir-protocol-circuits }
+        # Disabled as these are currently failing with many visibility errors
+        - { repo: AztecProtocol/aztec-nr, path: ./ }
+        - { repo: AztecProtocol/aztec-packages, path: ./noir-projects/noir-contracts }
+        # Disabled as aztec-packages requires a setup-step in order to generate a `Nargo.toml`
+        #- { repo: AztecProtocol/aztec-packages, path: ./noir-projects/noir-protocol-circuits }
         - { repo: zac-williamson/noir-edwards, path: ./, ref: 037e44b2ee8557c51f6aef9bb9d63ea9e32722d1  }
-        # TODO: Enable these once they're passing against master again.
-        #  - { repo: zac-williamson/noir-bignum, path: ./, ref: 030c2acce1e6b97c44a3bbbf3429ed96f20d72d3  }
-        #  - { repo: vlayer-xyz/monorepo, path: ./, ref: ee46af88c025863872234eb05d890e1e447907cb }
-        #  - { repo: hashcloak/noir-bigint, path: ./, ref: 940ddba3a5201b508e7b37a2ef643551afcf5ed8 }
     name: Check external repo - ${{ matrix.project.repo }}
     steps:
       - name: Checkout