Bug report

Bug description:

InvalidStateError is introduced in #7056, but not included in the module's __all__. A PR is on the way.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

• gh-120121: Add InvalidStateError to concurrent.futures.__all__ #120123
• [3.13] gh-120121: Add InvalidStateError to concurrent.futures.__all__ (GH-120123) #120273
• [3.12] gh-120121: Add InvalidStateError to concurrent.futures.__all__ (GH-120123) #120274