Build the support library against oneAPI 2026.0.0.

[maleadt]

Bump the Intel oneAPI toolkit (DPC++ compiler + oneMKL) used to build liboneapi_support from 2025.2.0 to 2026.0.0:

• deps/build_local.jl: dpcpp_linux-64 / mkl-devel-dpcpp Conda packages
• deps/Project.toml: oneAPI_Support_Headers_jll
• test/onemkl.jl: minimum oneMKL version assertion

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diff --git a/lib/mkl/fft.jl b/lib/mkl/fft.jl
index 745ff65..263b73b 100644
--- a/lib/mkl/fft.jl
+++ b/lib/mkl/fft.jl
@@ -98,9 +98,11 @@ function _create_descriptor(sz::NTuple{N,Int}, T::Type, complex::Bool) where {N}
     # without GC.@preserve the array can be collected first, leaving the descriptor
     # with garbage dimensions (commit then fails with FFT_INVALID_DESCRIPTOR).
     lengths = collect(Int64, sz)
-    st = GC.@preserve lengths (length(lengths) == 1 ?
-        onemklDftCreate1D(desc_ref, prec, dom, lengths[1]) :
-        onemklDftCreateND(desc_ref, prec, dom, length(lengths), pointer(lengths)))
+    st = GC.@preserve lengths (
+        length(lengths) == 1 ?
+            onemklDftCreate1D(desc_ref, prec, dom, lengths[1]) :
+            onemklDftCreateND(desc_ref, prec, dom, length(lengths), pointer(lengths))
+    )
     st == 0 || error("onemkl DFT create failed (status $st)")
     desc = desc_ref[]
     # Do not program descriptor scaling; we'll perform inverse normalization manually.
diff --git a/test/onemkl.jl b/test/onemkl.jl
index 9877440..7b83873 100644
--- a/test/onemkl.jl
+++ b/test/onemkl.jl
@@ -14,7 +14,7 @@ k = 13
 
 @testset "Version" begin
     version_onemkl = oneMKL.version()
-    @test version_onemkl ≥ v"2026.0.0"
+        @test version_onemkl ≥ v"2026.0.0"
 end
 
 ############################################################################################

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.92%. Comparing base (8a688fd) to head (9147cc8).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #582      +/-   ##
==========================================
+ Coverage   80.82%   80.92%   +0.09%     
==========================================
  Files          48       48              
  Lines        3233     3234       +1     
==========================================
+ Hits         2613     2617       +4     
+ Misses        620      617       -3     

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