Fix : Typo in probes.md

### 2. **Fix Typo in Probe Example**
- **What:** Correct the typo `'probe2's` to `'probe2'` in [[version-3.0.0/probes.md](website/versioned_docs/version-3.0.0/concepts/probes.md)](website/versioned_docs/version-3.0.0/concepts/probes.md).
- **Why:** Minor typo fix for professionalism and accuracy.