Fix Keras build/call parameter naming in DeepSet layers

[SermetPekin]

The error originates from this line in the Keras source code

On Windows with python 3.10.8
I get the error below.

FAILED tests/test_approximators/test_approximator_standardization/
test_approximator_standardization.py::test_save_and_load[standardize='all'] 
- ValueError: For a `build()` method with more than one argument, all arguments should have a `_shape` suffix
 and match an argument from `call()`. E.g. `build(self, foo_shape, bar_shape)`  
For layer 'EquivariantLayer', Received `build()` argument `self`, which does not end in `_shape`.

I created environment using

uv venv --python 3.10
.venv\Scripts\activate
uv pip install ".[all]"
uv run pytest -m "not slow"  

Mac and Ubuntu pass successfully. (uv run pytest -m 'not slow')

absl-py==2.3.1
accessible-pygments==0.0.5
alabaster==1.0.0
anyio==4.11.0
argon2-cffi==25.1.0
argon2-cffi-bindings==25.1.0
arrow==1.4.0
asttokens==3.0.0
astunparse==1.6.3
async-lru==2.0.5
attrs==25.4.0
babel==2.17.0
bayesflow @ file:///C:/Users/Username/PycharmProjects/bf_orig/bayesflow-main
beautifulsoup4==4.14.2
bleach==6.2.0
cachetools==6.2.1
certifi==2025.10.5
cffi==2.0.0
cfgv==3.4.0
chardet==5.2.0
charset-normalizer==3.4.4
click==8.3.0
colorama==0.4.6
comm==0.2.3
contourpy==1.3.2
coverage==7.11.0
cycler==0.12.1
debugpy==1.8.17
decorator==5.2.1
defusedxml==0.7.1
distlib==0.4.0
docutils==0.21.2
exceptiongroup==1.3.0
execnet==2.1.1
executing==2.2.1
fastjsonschema==2.21.2
filelock==3.20.0
flatbuffers==25.9.23
fonttools==4.60.1
fqdn==1.5.1
gast==0.6.0
google-pasta==0.2.0
greenlet==3.2.4
grpcio==1.76.0
h11==0.16.0
h5py==3.15.1
httpcore==1.0.9
httpx==0.28.1
identify==2.6.15
idna==3.11
imagesize==1.4.1
importlib-metadata==8.7.0
iniconfig==2.3.0
ipykernel==7.0.1
ipython==8.37.0
ipywidgets==8.1.7
isoduration==20.11.0
jedi==0.19.2
jinja2==3.1.6
json5==0.12.1
jsonpointer==3.0.0
jsonschema==4.25.1
jsonschema-specifications==2025.9.1
jupyter==1.1.1
jupyter-cache==1.0.1
jupyter-client==8.6.3
jupyter-console==6.6.3
jupyter-core==5.9.1
jupyter-events==0.12.0
jupyter-lsp==2.3.0
jupyter-server==2.17.0
jupyter-server-terminals==0.5.3
jupyterlab==4.4.10
jupyterlab-pygments==0.3.0
jupyterlab-server==2.28.0
jupyterlab-widgets==3.0.15
keras==3.11.3
kiwisolver==1.4.9
lark==1.3.0
latexcodec==3.0.1
libclang==18.1.1
line-profiler==5.0.0
markdown==3.9
markdown-it-py==3.0.0
markupsafe==3.0.3
matplotlib==3.10.7
matplotlib-inline==0.2.1
mdit-py-plugins==0.5.0
mdurl==0.1.2
mistune==3.1.4
ml-dtypes==0.5.3
myst-nb==1.3.0
myst-parser==4.0.1
namex==0.1.0
nbclient==0.10.2
nbconvert==7.16.6
nbformat==5.10.4
nest-asyncio==1.6.0
nodeenv==1.9.1
notebook==7.4.7
notebook-shim==0.2.4
numpy==1.26.4
numpydoc==1.9.0
opt-einsum==3.4.0
optree==0.17.0
overrides==7.7.0
packaging==25.0
pandas==2.3.3
pandocfilters==1.5.1
parso==0.8.5
pillow==12.0.0
pip==22.2.2
platformdirs==4.5.0
pluggy==1.6.0
pre-commit==4.3.0
prometheus-client==0.23.1
prompt-toolkit==3.0.52
protobuf==6.33.0
psutil==7.1.1
pure-eval==0.2.3
pybtex==0.25.1
pybtex-docutils==1.0.3
pycparser==2.23
pydata-sphinx-theme==0.16.1
pygments==2.19.2
pyparsing==3.2.5
pyproject-api==1.10.0
pytest==8.4.2
pytest-cov==7.0.0
pytest-rerunfailures==16.1
pytest-xdist==3.8.0
python-dateutil==2.9.0.post0
python-json-logger==4.0.0
pytz==2025.2
pywinpty==3.0.2
pyyaml==6.0.3
pyzmq==27.1.0
referencing==0.37.0
requests==2.32.5
rfc3339-validator==0.1.4
rfc3986-validator==0.1.1
rfc3987-syntax==1.1.0
rich==14.2.0
rpds-py==0.28.0
ruff==0.14.2
scipy==1.15.3
seaborn==0.13.2
send2trash==1.8.3
setuptools==63.2.0
six==1.17.0
sniffio==1.3.1
snowballstemmer==2.2.0
soupsieve==2.8
sphinx==8.1.3
sphinx-design==0.6.1
sphinx-polyversion==1.1.0
sphinxcontrib-applehelp==2.0.0
sphinxcontrib-bibtex==2.6.5
sphinxcontrib-devhelp==2.0.0
sphinxcontrib-htmlhelp==2.1.0
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==2.0.0
sphinxcontrib-serializinghtml==2.0.0
sqlalchemy==2.0.44
stack-data==0.6.3
tabulate==0.9.0
tensorboard==2.20.0
tensorboard-data-server==0.7.2
tensorflow==2.20.0
termcolor==3.1.0
terminado==0.18.1
tinycss2==1.4.0
tomli==2.3.0
tornado==6.5.2
tox==4.31.0
tqdm==4.67.1
traitlets==5.14.3
typing-extensions==4.15.0
tzdata==2025.2
uri-template==1.3.0
urllib3==2.5.0
virtualenv==20.35.3
wcwidth==0.2.14
webcolors==24.11.1
webencodings==0.5.1
websocket-client==1.9.0
werkzeug==3.1.3
wheel==0.45.1
widgetsnbextension==4.0.14
wrapt==2.0.0
zipp==3.23.0