Issue with imports replacement

[sisyphusSmiling]

Problem

Cross posting this issue here. Bug found in dependent package flow-js-testing.

Within flow-cadut, imports.replaceImportAddresses() seems to have an issue resolving import addresses.

This was not an issue before recent changes to the flow-cadut package, specifically those changes to the method in question, which leads me to believe that the issue lies with flow-cadut.

Steps to Reproduce

I'll paste how I came across this issue in the context of the dependent flow-js-testing package:

As an example, running the following in a test using flow-js-testing:

test("getAccountAddress breaks", async () => {
        const testAddress = await getAccountAddress("TestAddress");
    });

Gets us the following output:

Cannot read properties of undefined (reading 'replace')
TypeError: Cannot read properties of undefined (reading 'replace')
    at Object.replace [as replaceImportAddresses] (/Users/gsanchez/Workspace/flow-core-contracts/lib/js/test/node_modules/@onflow/flow-cadut/src/imports.js:103:15)
    at replaceImportAddresses (/Users/gsanchez/Workspace/flow-core-contracts/lib/js/test/node_modules/@onflow/flow-js-testing/src/interaction.js:95:14)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

Alternatively, this can be reproduced with an existing repo - flow-nft's JS tests are no longer passing. Try pulling and running those and you should get something like the output quoted above.

Acceptance Criteria

Errors are resolved

Context

Currently blocked from writing tests for the Execution Node versioning contract

[bymi15]

Any updates on this? Seems like a major blocker in Flow JS testing. Would be great if someone could look into this.
cc @MaxStalker @jribbink

The problem seems to occur for the Flow JS Testing library versions: v0.3.0-alpha.16 and v0.3.0-alpha.15
onflow/flow-js-testing#191 (comment)