CompatHelper: bump compat for ForwardDiff to 1 for package test, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the ForwardDiff package from 0.10.12 to 0.10.12, 1 for package test.
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.

[github-actions]

Benchmark Report for Commit 43e2232

Computer Information

Julia Version 1.11.4
Commit 8561cc3d68d (2025-03-10 11:36 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 4 × AMD EPYC 7763 64-Core Processor
  WORD_SIZE: 64
  LLVM: libLLVM-16.0.6 (ORCJIT, znver3)
Threads: 1 default, 0 interactive, 1 GC (on 4 virtual cores)

Benchmark Results

|                 Model | Dimension |  AD Backend |      VarInfo Type | Linked | Eval Time / Ref Time | AD Time / Eval Time |
|-----------------------|-----------|-------------|-------------------|--------|----------------------|---------------------|
| Simple assume observe |         1 | forwarddiff |             typed |  false |                  9.8 |                 1.6 |
|           Smorgasbord |       201 | forwarddiff |             typed |  false |                645.7 |                39.6 |
|           Smorgasbord |       201 | forwarddiff | simple_namedtuple |   true |                433.6 |                45.1 |
|           Smorgasbord |       201 | forwarddiff |           untyped |   true |               1245.6 |                27.2 |
|           Smorgasbord |       201 | forwarddiff |       simple_dict |   true |               4290.5 |                18.9 |
|           Smorgasbord |       201 | reversediff |             typed |   true |               1493.5 |                29.5 |
|           Smorgasbord |       201 |    mooncake |             typed |   true |                963.9 |                 5.2 |
|    Loop univariate 1k |      1000 |    mooncake |             typed |   true |               5797.6 |                 4.0 |
|       Multivariate 1k |      1000 |    mooncake |             typed |   true |               1100.9 |                 8.5 |
|   Loop univariate 10k |     10000 |    mooncake |             typed |   true |              64140.1 |                 3.7 |
|      Multivariate 10k |     10000 |    mooncake |             typed |   true |               9176.2 |                 9.6 |
|               Dynamic |        10 |    mooncake |             typed |   true |                136.7 |                13.2 |
|              Submodel |         1 |    mooncake |             typed |   true |                 26.2 |                 7.3 |
|                   LDA |        12 | reversediff |             typed |   true |                457.8 |                 4.8 |

[penelopeysm]

@yebai ReverseDiff still has a dependency on ForwardDiff = 0.10 JuliaDiff/ReverseDiff.jl#271 - I think this PR is blocked by that

/edit I meant to comment on #864 😅