Make tests depend on custom target

[AlexTereshenkov]

Repro: modifying file contents of a custom target that owns that file doesn't cause the test to re-run and uses the local cache.

❯ pants test tests/cli                                                                                               
17:15:30.50 [INFO] Completed: Run Pytest - tests/cli/test_cli.py:tests - succeeded.

✓ tests/cli/test_cli.py:tests succeeded in 0.21s (memoized).

❯ echo "0.0.2" > cheeseshop/VERSION

❯ pants test tests/cli
17:15:59.80 [INFO] Completed: Run Pytest - tests/cli/test_cli.py:tests - succeeded.

✓ tests/cli/test_cli.py:tests succeeded in 0.21s (memoized).

❯ echo "11223344" > cheeseshop/VERSION

fedora in ~/code/cheeseshop-query on  caching/custom-targets [$!?] via 🐍 v3.11.3 (.venv) 
❯ pants test tests/cli
17:16:17.02 [INFO] Completed: Run Pytest - tests/cli/test_cli.py:tests - succeeded.

✓ tests/cli/test_cli.py:tests succeeded in 0.21s (memoized).