build(deps): bump pallet-session from 1b1b67e to ee4ee95

Bumps [pallet-session](https://github.com/gluwa/substrate) from `1b1b67e` to `ee4ee95`.
- [Commits](gluwa/substrate@1b1b67e...ee4ee95)

---
updated-dependencies:
- dependency-name: pallet-session
  dependency-type: direct:production
...

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