minor: bump mloda to 0.9.0 (#78)

mloda 0.9.0 changes input-feature option forwarding: options now forward
to input features by default, with typed opt-outs, and the
feature_chainer_parser_key shield is retired. The template example code
does not use these paths, so no code changes are needed here.

Minor bump (feat, not chore/patch) to flag the upstream breaking change
to downstream template consumers. No BREAKING CHANGE footer is used on
purpose: the template's own public surface is unchanged, and the footer
would force a major release under the conventionalcommits preset.

Author: TKaltofen

pyproject.toml

@@ -10,7 +10,7 @@ version = "0.4.0"
 description = "TEMPLATE PLACEHOLDER - Do not install directly. This package reserves the name for mloda-plugin-template. See https://github.com/mloda-ai/mloda-plugin-template"
 license = "Apache-2.0"
 authors = [{ name = "Your Name placeholder", email = "placeholder@placeholder.com" }]
-dependencies = ["mloda>=0.8.0", "mloda-testing>=0.3.2"]
+dependencies = ["mloda>=0.9.0", "mloda-testing>=0.3.2"]
 requires-python = ">=3.10"
 
 [project.optional-dependencies]