chore: move to standardized pyproject.toml format (#2645)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: MortGron

README.md

@@ -62,9 +62,8 @@ The available extras (along with the libraries they include) are:
 - pandas `[pandas]`
 - geo `[geopandas, shapely]`
 - sympy `[sympy]`
-- functions `[pip]`
 - yaml `[PyYAML]`
-- all `[numpy, pandas, geopandas, shapely, sympy, pip, PyYAML]`
+- all `[numpy, pandas, geopandas, shapely, sympy, PyYAML]`
 
 To include optional dependencies:
 

docs/source/extensions_and_optional_dependencies.rst

@@ -16,7 +16,6 @@ you should install the SDK along with its optional dependencies. The available e
 - pandas: pandas
 - geo: geopanda, shapely
 - sympy: sympy
-- functions: pip
 - all (will install dependencies for all the above)
 
 These can be installed with the following command: