Narrow MatrixAlgebraKit compat to pin at 0.6.4 (#258)

Root `[compat]` was claiming support for the whole 0.6 series (`"0.6"`)
while `test/Project.toml` pinned to `"0.6.0 - 0.6.4"`. That gap makes
the compat-bounds check fail: the root's upper bound (0.6.5) is not
reachable in the workspace resolver (since test caps at 0.6.4).

The right fix is to narrow root to match test, since MatrixAlgebraKit
0.6.5 has a JLArrays compat break (fix is on MatrixAlgebraKit main but
not yet registered). Once a fix is released (0.6.6), both root and test
can widen back to `"0.6"`.

### Changes

- Project.toml: `MatrixAlgebraKit = "0.6"` → `"0.6.0 - 0.6.4"`
- Project.toml: version `0.10.37` → `0.10.38`

Author: mtfishman

Project.toml

@@ -1,6 +1,6 @@
 name = "BlockSparseArrays"
 uuid = "2c9a651f-6452-4ace-a6ac-809f4280fbb4"
-version = "0.10.37"
+version = "0.10.38"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
 
 [workspace]
@@ -41,7 +41,7 @@ GPUArraysCore = "0.1, 0.2"
 LinearAlgebra = "1.10"
 MacroTools = "0.5.13"
 MapBroadcast = "0.1.5"
-MatrixAlgebraKit = "0.6"
+MatrixAlgebraKit = "0.6.0 - 0.6.4"
 SparseArraysBase = "0.9"
 SplitApplyCombine = "1.2.3"
 TensorAlgebra = "0.6.2, 0.7, 0.8, 0.9"