Release v0.3.3

[gadomski]

Description: stac-utils/pystac#697 tends to crop up when using pystac-client, so we want our latest release to depend on pystac >= 1.4. Includes one minor changelog reorganization.

PR Checklist:

• Code is formatted
• Tests pass
• Changes are added to the CHANGELOG

Release notes

These will go in the annotated tag:

v0.3.3

Added:

- Add `--filter-lang` parameter to allow specifying other filter language to be used within the `--filter` parameter [#140](https://github.com/stac-utils/pystac-client/pull/140)
- CI checks against minimum versions of all dependencies and any pre-release versions of PySTAC [#144](https://github.com/stac-utils/pystac-client/pull/144)

Changed:

- Relaxed upper bound on PySTAC dependency [#144](https://github.com/stac-utils/pystac-client/pull/144)
- Bumped PySTAC dependency to >= 1.4.0 [#147](https://github.com/stac-utils/pystac-client/pull/147)