Revert "Move v1.1 docs tag to v1.1.2"

[guydc]

Reverts envoyproxy/gateway#4615

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 65.60%. Comparing base (3191d49) to head (2c57e3f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #4633 +/- ## ========================================== + Coverage 65.58% 65.60% +0.01% ========================================== Files 211 211 Lines 31945 31945 ========================================== + Hits 20950 20956 +6 + Misses 9754 9748 -6 Partials 1241 1241 ```

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