LanguageServerDependencyProviderUvx: Use 'uv tool run' instead of 'uv x' (more widely supported)

Resolves #1721

CHANGELOG.md

@@ -18,6 +18,8 @@ Status of the `main` branch. Changes prior to the next official version change w
 * Language Servers:
   - Fix: Properly differentiate between raw and high-level symbol cache fingerprints, avoiding unnecessary
     invalidations of the raw cache when only the derived high-level representation changes
+  - Improve uv-based language server launch command compatibility: Use the more widely supported 
+    `uv tool run` instead of `uv x` #1721
   - Java (JDT-LS): add `runtimes` to `ls_specific_settings.java`, a list of extra JRE/JDK entries
     (`name`, `path`, optional `default`/`sources`/`javadoc`) passed through to JDT-LS's
     `java.configuration.runtimes`. Fixes silently broken JDK type resolution (`java.lang.Object`

src/solidlsp/dependency_provider.py

@@ -214,12 +214,7 @@ class LanguageServerDependencyProviderUvx(LanguageServerDependencyProviderBaseCo
         entrypoint: str,
         python_version: str = DEFAULT_UVX_PYTHON_VERSION,
     ) -> list[str]:
-        """Build a command that runs a pinned PyPI package's console script on demand via ``uvx`` / ``uv x``.
-
-        Resolution order:
-          1. Prefer ``uvx`` (env var ``UVX`` or PATH lookup).
-          2. Fall back to ``uv x`` if only ``uv`` is on PATH.
-          3. Raise ``RuntimeError`` if neither is available.
+        """Build a command that runs a pinned PyPI package's console script on demand via ``uvx`` / ``uv tool run``.
 
         :param package: PyPI package name (e.g. ``"pyright"``).
         :param version: Pinned package version.
@@ -234,7 +229,7 @@ class LanguageServerDependencyProviderUvx(LanguageServerDependencyProviderBaseCo
 
         uv_path = shutil.which("uv")
         if uv_path is not None:
-            return [uv_path, "x", *base_args]
+            return [uv_path, "tool", "run", *base_args]  # `uv tool run` is the same as `uvx`
 
         raise RuntimeError("Could not find 'uvx' or 'uv' in PATH. Install uv (https://docs.astral.sh/uv/).")