(chore) bump version to v1.29.1 for release #1006

Job	Run time
Pydantic V1	19s
Compatibility	23s
Docker	19s
ubuntu-latest - python 3.8 - Lint	16s
ubuntu-latest - python 3.8 - Type check	27s
ubuntu-latest - python 3.8 - Unit tests	56s
ubuntu-latest - python 3.8 - Doc tests	1m 31s
ubuntu-latest - python 3.8 - Doc tests (B)	1m 25s
ubuntu-latest - python 3.8 - Images	52s
ubuntu-latest - python 3.8 - Jobs	21s
ubuntu-latest - python 3.8 - Experiments	37s
ubuntu-latest - python 3.8 - Datasets	51s
ubuntu-latest - python 3.8 - Sweep example	59s
ubuntu-latest - python 3.8 - Build	20s
ubuntu-latest - python 3.8 - Style	15s
ubuntu-latest - python 3.8 - Docs	34s
Release	0s
	10m 25s

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