Extract canonical ID when importing

[danielrbradley]

Prefer to read the canonical ID from the response if inputs are nil.

[github-actions[bot]]

Does the PR have any schema changes?

Looking good! No breaking changes found. No new resources/functions.

[codecov[bot]]

Codecov Report

:x: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 59.67%. Comparing base (12031f9) to head (e3802bc).

Files with missing lines	Patch %	Lines
provider/pkg/provider/provider.go	0.00%	4 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4356      +/-   ##
==========================================
- Coverage   59.71%   59.67%   -0.05%     
==========================================
  Files          90       90              
  Lines       14141    14144       +3     
==========================================
- Hits         8444     8440       -4     
- Misses       5040     5046       +6     
- Partials      657      658       +1     

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[EronWright]

Possibly related: https://github.com/pulumi/pulumi-azure-native/pull/4202