feat(cli): ignore tracking annotation on backup restore

[agaudreault]

If an argocd instance in namespace X, managed by another argo instance needs to be backed up and restored in namespace Y, also managed as code by a "dr" argo instance, then the tracking annotation will cause OutOfSync and potentially shared resource error.

Solution:

• Ignore the tracking annotation if the resource already exist. If the resource does not exist, then it is not managed "as code" in the DR instance and will not conflict.

Bonus:

• Ignore the last-applied-configuration annotation

[bunnyshell]

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Component	Endpoints
argocd	https://argocd-zcalhs.bunnyenv.com/
argocd-ttyd	https://argocd-web-cli-zcalhs.bunnyenv.com/

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[bunnyshell]

✅ Preview Environment created on Bunnyshell but will not be auto-deployed

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[codecov]

Codecov Report

Attention: Patch coverage is 51.72414% with 14 lines in your changes missing coverage. Please review.

Project coverage is 50.66%. Comparing base (45b7593) to head (43044e5).

Files	Patch %	Lines
cmd/argocd/commands/admin/backup.go	62.50%	9 Missing ⚠️
cmd/argocd/commands/admin/admin.go	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #18960      +/-   ##
==========================================
- Coverage   50.66%   50.66%   -0.01%     
==========================================
  Files         315      315              
  Lines       43347    43370      +23     
==========================================
+ Hits        21963    21974      +11     
- Misses      18882    18893      +11     
- Partials     2502     2503       +1     

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