Remove deprecated linting rules from pyproject.toml.jinja

[ANN101](https://docs.astral.sh/ruff/rules/missing-type-self/) and [ANN102](https://docs.astral.sh/ruff/rules/missing-type-cls/) have been removed and referencing them in the config causes warnings to be printed when ruff is run.

See also WUR-AI/diffWOFOST#12 (comment)

Author: cwmeijer

template/pyproject.toml.jinja

@@ -120,8 +120,6 @@ dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 # Enable Pyflakes `E` and `F` codes by default.
 select = ["ALL"]
 ignore = [
-    "ANN101", # Missing type annotation for `self` in method
-    "ANN102", # Missing type annotation for `cls` in classmethod
     "ANN204", # Missing return type annotation for special (dunder) method
     "FBT",    # Using boolean function arguments
     "TD",     # TODOs