Pin dependency yaml to 2.8.1 (#726)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [yaml](https://eemeli.org/yaml/)
([source](https://redirect.github.com/eemeli/yaml)) | devDependencies |
pin | [`^2.8.1` ->
`2.8.1`](https://renovatebot.com/diffs/npm/yaml/2.8.1/2.8.1) |

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

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package-lock.json

@@ -62,6 +62,6 @@
     "typescript": "5.8.3",
     "typescript-eslint": "8.38.0",
     "vitest": "3.2.4",
-    "yaml": "^2.8.1"
+    "yaml": "2.8.1"
   }
 }