Reject float format precision near INT_MAX

[gpshead]

Bug report

I'll fill in details here once public. reserving the GH issue number.

CPython versions tested on:

3.10, 3.15, 3.11, 3.12, CPython main branch, 3.14, 3.13

Operating systems tested on:

No response

Linked PRs

• gh-158446: Reject float format precision near INT_MAX #158474
• [3.15] gh-158446: Reject float format precision near INT_MAX (GH-158474) #158476
• [3.14] gh-158446: Reject float format precision near INT_MAX (GH-158474) #158477
• [3.13] gh-158446: Reject float format precision near INT_MAX (GH-158474) #158478
• [3.12] gh-158446: Reject float format precision near INT_MAX (GH-158474) #158479
• [3.11] gh-158446: Reject float format precision near INT_MAX (GH-158474) #158480
• [3.10] gh-158446: Reject float format precision near INT_MAX (GH-158474) #158482