chore(deps): bump @modelcontextprotocol/sdk from 1.25.2 to 1.26.0

Bumps [@modelcontextprotocol/sdk](https://github.com/modelcontextprotocol/typescript-sdk) from 1.25.2 to 1.26.0.
- [Release notes](https://github.com/modelcontextprotocol/typescript-sdk/releases)
- [Commits](https://github.com/modelcontextprotocol/typescript-sdk/compare/v1.25.2...v1.26.0)

---
updated-dependencies:
- dependency-name: "@modelcontextprotocol/sdk"
  dependency-version: 1.26.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -24,7 +24,7 @@
   "prettier": "@github/prettier-config",
   "dependencies": {
     "@actions/core": "^3.0.0",
-    "@modelcontextprotocol/sdk": "^1.25.2",
+    "@modelcontextprotocol/sdk": "^1.26.0",
     "@types/tmp": "^0.2.6",
     "js-yaml": "^4.1.1",
     "openai": "^6.28.0",