Ansys-api-mapdl

What's Changed
* Allow using protobuf 4.x releases by greschd in https://github.com/ansys/ansys-api-mapdl/pull/11
* Create patch release 0.5.2 by greschd in https://github.com/ansys/ansys-api-mapdl/pull/13

New Contributors
* greschd made their first contribution in https://github.com/ansys/ansys-api-mapdl/pull/11

**Full Changelog**: https://github.com/ansys/ansys-api-mapdl/compare/v0.5.1...v0.5.2

What's Changed
* use template by akaszynski in https://github.com/ansys/ansys-api-mapdl/pull/5
* Changes to fix the Sym() method : New MatType information by FredAns in https://github.com/ansys/ansys-api-mapdl/pull/6
* Add database proto by akaszynski in https://github.com/ansys/ansys-api-mapdl/pull/7


**Full Changelog**: https://github.com/ansys/ansys-api-mapdl/compare/v0.4.1...v0.5.1

Tied to Product Version 21.2 and server version 0.4.0

Adds the following Messages:
- `SetMatDataRequest`

Adds the following Services:
- `SetMatData`