PSQueue-1.1.1: ChangeLog.md

### 1.1.1

- Teo Camarasu takes over as maintainer [#1](https://github.com/TeofilC/PSQueue/pull/1)
- Relax base bound to allow compatiblity with GHC-9.0 and GHC-9.2 [#2](https://github.com/TeofilC/PSQueue/pull/2)
- Add test suite and basic Github Actions CI [#3](https://github.com/TeofilC/PSQueue/pull/3)


### 1.1.0.1

- Maintenance release
- Add support for `base-4.11.0.0`
- Fix link to ICFP paper
- Modernise packaging