chore(deps-dev): bump @deepseek-ai/dsh-session

Bumps [@deepseek-ai/dsh-session](https://github.com/deepseek-ai/deepseek-harness/tree/HEAD/packages/core/session) from 0.1.0-rc.6 to 0.1.0-rc.8.
- [Release notes](https://github.com/deepseek-ai/deepseek-harness/releases)
- [Commits](https://github.com/deepseek-ai/deepseek-harness/commits/dsh-v0.1.0-rc.8/packages/core/session)

---
updated-dependencies:
- dependency-name: "@deepseek-ai/dsh-session"
  dependency-version: 0.1.0-rc.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

integrations/deepseek-harness/package.json

@@ -62,7 +62,7 @@
   "devDependencies": {
     "@deepseek-ai/cordis": "4.0.1",
     "@deepseek-ai/dsh-llm": "0.1.0-rc.6",
-    "@deepseek-ai/dsh-session": "0.1.0-rc.6",
+    "@deepseek-ai/dsh-session": "0.1.0-rc.8",
     "@deepseek-ai/dsh-tools": "0.1.0-rc.6",
     "@types/node": "^22.15.21",
     "tsup": "^8.5.1",