fix: correct models-api.json path in release workflow

build.ts does process.chdir("packages/altimate-code/") before reading
the env var, so the path must be relative to that directory.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: anandgupta42

.github/workflows/release.yml

@@ -31,7 +31,7 @@ jobs:
           ALTIMATE_CLI_CHANNEL: latest
           ALTIMATE_CLI_RELEASE: "1"
           GH_REPO: ${{ env.GH_REPO }}
-          MODELS_DEV_API_JSON: packages/altimate-code/test/tool/fixtures/models-api.json
+          MODELS_DEV_API_JSON: test/tool/fixtures/models-api.json
 
       - name: Upload build artifacts
         uses: actions/upload-artifact@v4