Only trigger import hacking on manual request

[terrorfisch]

Disable import hacking during testing which easily breaks and is only a convenience functionality for developing

[github-actions]

Test Results

    6 files  ±0      6 suites  ±0   4m 58s ⏱️ -55s
1 210 tests +1  1 142 ✅  -  4   68 💤 + 7  0 ❌  -  2 
7 260 runs  +6  6 852 ✅  - 24  408 💤 +42  0 ❌  - 12 

Results for commit 2342c57. ± Comparison against base commit ea88576.

This pull request removes 6 and adds 7 tests. Note that renamed tests count towards both.

tests.utils.time_type_tests.TestTimeType ‑ test_comparisons_work_fallback
tests.utils.time_type_tests.TestTimeType ‑ test_fraction_fallback
tests.utils.time_type_tests.TestTimeType ‑ test_fraction_time_from_float_exact_fallback
tests.utils.time_type_tests.TestTimeType ‑ test_fraction_time_from_float_with_precision_fallback
tests.utils.time_type_tests.TestTimeType ‑ test_fraction_time_from_fraction_fallback
tests.utils.time_type_tests.TestTimeType ‑ test_from_float_no_extra_args_fallback

tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_comparisons_work_fallback
tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_fraction_fallback
tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_fraction_time_from_float_exact_fallback
tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_fraction_time_from_float_with_precision_fallback
tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_fraction_time_from_fraction_fallback
tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_from_float_no_extra_args_fallback
tests.utils.time_type_tests.TestTimeTypeDevFallback ‑ test_try_from_any_fallback