CompatHelper: bump compat for ForwardDiff in [weakdeps] to 1, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the ForwardDiff package from 0.10.26 to 0.10.26, 1.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[Technici4n]

Hi, could this be merged? :)

[Vaibhavdixit02]

It goes way deeper in the stack than here for now unfortunately, https://github.com/SciML/ModelingToolkit.jl/actions/runs/14320864845/job/40137331188?pr=3508#step:6:206. We'll merge it once CI can pass

[Technici4n]

It's quite crazy how much stuff OptimizationBase seems to depend on. 😅

[Technici4n]

The tests don't seem to use e.g. Flux despite declaring a dependency on it. Maybe removing the unused dependencies from the test project might resolve the issue here?

[ChrisRackauckas]

@oscardssmith track this one too

[ChrisRackauckas]

Checked locally and this is fine.

[Technici4n]

Thanks for the fix! Would it be possible to backport it to OptimizationBase 1 as well, as we are still using Optimization 3?

[ChrisRackauckas]

What keeps you back in the stone age? It's probably easier to fix that. If you want to do the testing for the backport though you can.

[Technici4n]

Good question! I'll have a look and report back. Thanks.