Bump tensorflow-probability from 0.11.1 to 0.12.1

Bumps [tensorflow-probability](https://github.com/tensorflow/probability) from 0.11.1 to 0.12.1.
- [Release notes](https://github.com/tensorflow/probability/releases)
- [Commits](tensorflow/probability@v0.11.1...v0.12.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

requirements.txt

@@ -46,7 +46,7 @@ snakeviz==2.1.0
 sphinx==3.4.0
 tables==3.6.1     # pytables, necessary for pandas hdf5 i/o
 tensorflow==2.3.1 # do not upgrade to 2.4.0 - it brings in additional AVX2 requirements (https://github.com/XENONnT/base_environment/issues/433)
-tensorflow_probability==0.12.0
+tensorflow_probability==0.12.1
 tqdm==4.55.1
 utilix==0.3.3       # dependency for straxen, admix
 zstd==1.4.8.1     # Strax dependency