catches exception when Target is not a member of the organization

[amenocal]

When Skipping invitations to reclaim mannequin and the target was not a member of the Org, the process will simply not return WHO the member was not part of the org providing no details on who potentially needs to be added to the org, and it will fail-fast and stopped processing any further users.

I've added a catch Exception for then "Target must be a member" so that the HandleReclaimationResult will log that and continue processing accordingly.

Now the HandleReclaimationResult will output this:

[2024-11-25 22:28:54] [WARNING] Failed to reattribute content belonging to mannequin <user> (<user-id>) to <targe-user-d>: Target must be a member of the <targe-org> organization

Enhancements to error handling:

• src/Octoshift/Services/GithubApi.cs: Added a new catch block to handle OctoshiftCliException with a specific message and return a structured error result.

Code improvements:

• src/Octoshift/Services/GithubApi.cs: Imported the System.Collections.ObjectModel namespace to use the Collection class.

• [ ] Did you write/update appropriate tests - N\A
• Release notes updated (if appropriate)
• Appropriate logging output
• Issue linked
• Docs updated (or issue created)
• New package licenses are added to ThirdPartyNotices.txt (if applicable)

[github-actions]

Unit Test Results

840 tests   840 ✅  22s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 015fc9e.

♻️ This comment has been updated with latest results.

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
gei	81%	73%	578	✔
ado2gh	84%	78%	627	✔
Octoshift	86%	76%	1300	✔
bbs2gh	79%	74%	680	✔
Summary	84% (7081 / 8473)	76% (1613 / 2134)	3185	✔