Run on 1.9+

[mcabbott]

This is a quick attempt to make Diffractor work on nightly again.

[codecov-commenter]

Codecov Report

Base: 55.54% // Head: 54.25% // Decreases project coverage by -1.28% ⚠️

Coverage data is based on head (db328cf) compared to base (55d2871).
Patch coverage: 25.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #93      +/-   ##
==========================================
- Coverage   55.54%   54.25%   -1.29%     
==========================================
  Files          21       21              
  Lines        2157     2105      -52     
==========================================
- Hits         1198     1142      -56     
- Misses        959      963       +4     

Impacted Files	Coverage Δ
src/stage1/hacks.jl	6.38% <ø> (ø)
src/tangent.jl	32.97% <0.00%> (-1.07%)	⬇️
src/stage1/compiler_utils.jl	93.33% <33.33%> (-6.67%)	⬇️
src/stage1/forward.jl	69.38% <0.00%> (-4.77%)	⬇️
src/extra_rules.jl	45.87% <0.00%> (-1.84%)	⬇️
src/stage1/recurse.jl	95.84% <0.00%> (-1.27%)	⬇️
src/jet.jl	39.16% <0.00%> (-0.51%)	⬇️
src/stage1/recurse_fwd.jl	94.11% <0.00%> (-0.17%)	⬇️
src/stage1/generated.jl	78.18% <0.00%> (-0.10%)	⬇️
... and 2 more

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