Azure DevOps Self-signed certs

[arnouthoebreckx]

Fixes ISSUE #9607 but for Azure DevOps

Issue was created for BitBucket but in the comments discussions were made to create the same for other providers. Azure DevOps also has a less popular version of Azure DevOps Server that can be installed on-premise with self-signed certificates.

Was based on a previously merged PR #19002 that did the same for BitBucketServer & GitLab.

Checklist:

[ x ] Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
[ x ] The title of the PR states what changed and the related issues number (used for the release note).
[ x ] The title of the PR conforms to the Toolchain Guide
[ x ] I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
[ x ] Does this PR require documentation updates?
[ x ] I've updated documentation as required by this PR.
[ x ] I have signed off all my commits as required by DCO
I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
My build is green (troubleshooting builds).
My new feature complies with the feature status guidelines.
I have added a brief description of why this PR is necessary and/or what this PR solves.
Optional. My organization is added to USERS.md.
Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 22 lines in your changes missing coverage. Please review.

Please upload report for BASE (master@40c6077). Learn more about missing BASE report.
Report is 436 commits behind head on master.

Files with missing lines	Patch %	Lines
applicationset/generators/scm_provider.go	0.00%	9 Missing ⚠️
applicationset/generators/pull_request.go	0.00%	7 Missing ⚠️
...plicationset/services/pull_request/azure_devops.go	0.00%	3 Missing ⚠️
...plicationset/services/scm_provider/azure_devops.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #20046   +/-   ##
=========================================
  Coverage          ?   55.78%           
=========================================
  Files             ?      320           
  Lines             ?    44414           
  Branches          ?        0           
=========================================
  Hits              ?    24776           
  Misses            ?    17078           
  Partials          ?     2560           

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