[tpm2] [RELEASE] tpm2-pytss version 1.2.0

Hello,

I am pleased to announce the release of version 1.2.0 of tpm2-pytss with the following CHANGELOG:

## 1.2.0 - 2022-06-14
### Added
- utils function to parse tpm2-tools PCR values as function: unmarshal_tools_pcr_values.
- official python 3.10 support.
- sm2 and sm4 tools like parsing support for TPMT_PUBLIC and TPM2B_PUBLIC structures.
- tpm2-tools compatible YAML encoding and decoding of TPM structures
### Removed
- pkgconfig as runtime dependency
- Official Python 3.6 support.
- internal distutils usage.
- sm3 and sm4 support IF the backing cryptography package supports it.
### Fixed:
- trsess_set_attributes attributes parameter should be a TPMA_SESSION or int, not just int.
- setup.cfg install_requires requirement that cryptography be version 3.0 or greater.
- Note in documentation incorrectly called None.
- ability to build a wheel and run tests from directory root. Note code for package is now under src folder.

The release can be found on pypi here:
  - https://pypi.org/project/tpm2-pytss/1.2.0/