Narrow test JuliaSyntax compat to match resolver (#53)

`JuliaFormatter 2.3.0` (the latest registered version) pins
`JuliaSyntax` to `0.4.10`. That makes `test/Project.toml`'s entry
`JuliaSyntax = "0.4.10, 1"` aspirational — the `1` disjunct is never
reachable.

Under the compat-bounds check's breaking-bucket rule
([ITensorActions#79](ITensor/ITensorActions#79)),
this spans two buckets (0.4 and 1) and fails the check. Narrowing to
`"0.4.10"` collapses to a single bucket.

Widen back whenever JuliaFormatter ships a release with broader
JuliaSyntax compat.

### Supersedes

- Closes #52

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: mtfishman

Project.toml

@@ -1,6 +1,6 @@
 name = "ITensorFormatter"
 uuid = "b6bf39f1-c9d3-4bad-aad8-593d802f65fd"
-version = "0.2.28"
+version = "0.2.29"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
 
 [workspace]

test/Project.toml

@@ -14,7 +14,7 @@ path = ".."
 Aqua = "0.8"
 ITensorFormatter = "0.2"
 ITensorPkgSkeleton = "0.3.42"
-JuliaSyntax = "0.4.10, 1"
+JuliaSyntax = "0.4.10"
 SafeTestsets = "0.1"
 Suppressor = "0.2"
 Test = "1.10"