Bug - Outdated link on Input Group page

**Describe the problem**
The link for "input group react tab" on [Input group](https://www.patternfly.org/components/input-group/design-guidelines) points to https://v4-archive.patternfly.org/v4/components/input-group#examples

**Expected behavior**
Should point to https://www.patternfly.org/components/input-group

---

**Jira Issue:** [PF-3640](https://issues.redhat.com/browse/PF-3640)