fix: parsing mixed-value toml arrays

Upgrade `@iarna/toml` to v3 which should support mixed values within
TOML arrays.

Updated one of the test fixtures to make use of the newer
`[dependency-groups]` section.

Fixes: #25413
Signed-off-by: JP-Ellis <[email protected]>

Author: JP-Ellis

package-lock.json

@@ -1695,7 +1695,7 @@
         "webpack": "webpack"
     },
     "dependencies": {
-        "@iarna/toml": "^2.2.5",
+        "@iarna/toml": "^3.0.0",
         "@vscode/extension-telemetry": "^0.8.4",
         "arch": "^2.1.0",
         "fs-extra": "^11.2.0",

package.json

@@ -28,7 +28,7 @@ function getInstallableToml(): typemoq.IMock<TextDocument> {
         .setup((p) => p.getText(typemoq.It.isAny()))
         .returns(
             () =>
-                '[project]\nname = "spam"\nversion = "2020.0.0"\n[build-system]\nrequires = ["setuptools ~= 58.0", "cython ~= 0.29.0"]\n[project.optional-dependencies]\ntest = ["pytest"]\ndoc = ["sphinx", "furo"]',
+                '[project]\nname = "spam"\nversion = "2020.0.0"\n[build-system]\nrequires = ["setuptools ~= 58.0", "cython ~= 0.29.0"]\n[dependency-groups]\ndev = ["ruff", { include-group = "test" }]\ntest = ["pytest"]',
         );
     return pyprojectToml;
 }