Issue-3769 : fix update component external references

[sahibamittal]

Description

When I update a component's data I supply external references for the component, as specified in API spec for /v1/component endpoint. The update is processed and 200 OK is returned, but when I read the component again, I can see no external references.

Addressed Issue

Closes https://github.com/DependencyTrack/dependency-track/issues/3769

Checklist

• [x] I have read and understand the contributing guidelines
• [x] This PR fixes a defect, and I have provided tests to verify that the fix is effective
• [ ] This PR implements an enhancement, and I have provided tests to verify that it works as intended
• [ ] This PR introduces changes to the database model, and I have added corresponding update logic
• [ ] This PR introduces new or alters existing behavior, and I have updated the documentation accordingly

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.00% (target: -1.00%)	:white_check_mark: 100.00% (target: 70.00%)

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (b19f1016fd12b08824eda3335c87940565716528) | 21708 | 16478 | 75.91% | | | Head commit (55fda62748ce0ec5170b146ac8457d45763e5b52) | 21710 (+2) | 16480 (+2) | 75.91% (**+0.00%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#3805) | 2 | 2 | **100.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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