[TECH-DEBT][NRPTI-1167]** Imports test coverage improvements

[davidclaveau]

Pull Request Standards

• [x] The title of the PR is accurate
• [x] The title includes the type of change [HOTFIX, FEATURE, etc]
• [x] The PR title includes the ticket number in format of [NRPTI-###]
• [x] Documentation is updated to reflect change

Description

This PR includes the following proposed change(s):

• Add additional testing to the following importers and their files: alc, ams, cmdb, coors, era, flnr, mis.
• Unit tests and integration tests, ensuring functionality is properly outlined and retrieved as expected

| File Name                   | Old Coverage | New Coverage | Improvement |
|-----------------------------|--------------|--------------|-------------|
| importers/alc               | 65.89%       | 84.5%        | +18.61%     |
| importers/ams               | 72.52%       | 90.08%       | +17.56%     |
| importers/cmdb              | 65.32%       | 86.29%       | +20.97%     |
| importers/coors             | 73.97%       | 94.63%       | +20.66%     |
| importers/era               | 72.5%        | 91.67%       | +19.17%     |
| importers/flnr              | 75%          | 93.75%       | +18.75%     |
| importers/mis               | 72.32%       | 92.86%       | +20.54%     |
| Total Improvement           | -            | -            | +19.66%     |

[sonarcloud[bot]]

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