Source Github: fix expected records for stream pull_request

[roman-yermilov-gl]

What

Expected records do not match for stream pull_requests. Amount of forks field changed to 1

How

Expected records updated for stream pull_requests

[github-actions]

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[roman-yermilov-gl]

/test connector=connectors/source-github

🕑 connectors/source-github https://github.com/airbytehq/airbyte/actions/runs/5155166220
✅ connectors/source-github https://github.com/airbytehq/airbyte/actions/runs/5155166220
Python tests coverage:

Name                             Stmts   Miss  Cover
----------------------------------------------------
source_github/github_schema.py    8807      0   100%
source_github/constants.py           5      0   100%
source_github/__init__.py            2      0   100%
source_github/utils.py              59      2    97%
source_github/streams.py           845     88    90%
source_github/graphql.py           167     22    87%
source_github/source.py            131     23    82%
----------------------------------------------------
TOTAL                            10016    135    99%

Build Passed

Test summary info:

=========================== short test summary info ============================
SKIPPED [1] ../usr/local/lib/python3.9/site-packages/connector_acceptance_test/tests/test_core.py:100: The previous and actual specifications are identical.
SKIPPED [2] ../usr/local/lib/python3.9/site-packages/connector_acceptance_test/tests/test_core.py:598: The previous and actual discovered catalogs are identical.
SKIPPED [2] ../usr/local/lib/python3.9/site-packages/connector_acceptance_test/tests/test_core.py:695: This tests currently leads to too much failures. We need to fix the connectors at scale first.
================== 47 passed, 5 skipped in 321.91s (0:05:21) ===================