Remove noexcept from _restore_ch

[bdraco]

It turns out this can raise ValueError if <Py_UCS4>-1 is out of range

[codspeed-hq]

CodSpeed Performance Report

Merging #1410 will not alter performance

_{Comparing no_except_restore_ch (3cd5987) with master (dfc41db)}

Summary

✅ 83 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.06%. Comparing base (dfc41db) to head (3cd5987).
Report is 60 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1410   +/-   ##
=======================================
  Coverage   96.06%   96.06%           
=======================================
  Files          31       31           
  Lines        5765     5765           
  Branches      344      344           
=======================================
  Hits         5538     5538           
  Misses        201      201           
  Partials       26       26           

Flag	Coverage Δ
CI-GHA	96.06% <100.00%> (ø)
MyPy	48.68% <ø> (ø)
OS-Linux	99.55% <100.00%> (ø)
OS-Windows	99.61% <ø> (ø)
OS-macOS	99.30% <100.00%> (ø)
Py-3.10.11	99.28% <100.00%> (ø)
Py-3.10.15	99.51% <100.00%> (ø)
Py-3.11.10	99.51% <100.00%> (ø)
Py-3.11.9	99.28% <100.00%> (ø)
Py-3.12.7	99.51% <100.00%> (ø)
Py-3.13.0	99.51% <100.00%> (ø)
Py-3.9.13	99.23% <100.00%> (ø)
Py-3.9.20	99.47% <100.00%> (ø)
Py-pypy7.3.16	99.53% <ø> (ø)
Py-pypy7.3.17	99.55% <ø> (ø)
VM-macos-latest	99.30% <100.00%> (ø)
VM-ubuntu-latest	99.55% <100.00%> (ø)
VM-windows-latest	99.61% <ø> (ø)
pytest	99.55% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.