[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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