Add datasources to pf providerbuilder

[VenelinMartinov]

This adds data sources to the providerbuilder test module. It allows us to test data sources in PF

[VenelinMartinov]

This change is part of the following stack:

• 2615 ◀

  • 2616

    • 2617

_{Change managed by git-spice.}

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 13.04348% with 20 lines in your changes missing coverage. Please review.

Project coverage is 62.78%. Comparing base (317d4b8) to head (5746b33). Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...f/tests/internal/providerbuilder/build_provider.go	17.64%	12 Missing and 2 partials :warning:
...tests/internal/providerbuilder/build_datasource.go	0.00%	6 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2615 +/- ## ========================================== - Coverage 62.80% 62.78% -0.02% ========================================== Files 389 390 +1 Lines 51939 51961 +22 ========================================== + Hits 32622 32626 +4 - Misses 17509 17524 +15 - Partials 1808 1811 +3 ```

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[pulumi-bot]

This PR has been shipped in release v3.96.0.