Update CONTRIBUTING.md and Pipfile for removed dependency

Author: tleonhardt

.github/CONTRIBUTING.md

@@ -63,21 +63,20 @@ The tables below list all prerequisites along with the minimum required version
 
 #### Additional prerequisites for developing cmd2
 
-| Prerequisite                                                                               | Minimum Version | Purpose                           |
-| ------------------------------------------------------------------------------------------ | --------------- | --------------------------------- |
-| [codecov](http://doc.pytest.org/en/latest/)                                                | `2.1.13`        | Cover coverage reporting          |
-| [invoke](https://www.pyinvoke.org/)                                                        | `2.2.0`         | Command automation                |
-| [griffe_typingdoc](https://github.com/mkdocstrings/griffe-typingdoc)                       | `0.2.7`         | mkdocstrings extension for typing |
-| [mypy](https://mypy-lang.org/)                                                             | `1.13.0`        | Static type checker               |
-| [pytest](https://docs.pytest.org/en/stable/)                                               | `3.0.6`         | Unit and integration tests        |
-| [pytest-cov](http://doc.pytest.org/en/latest/)                                             | `6.0.0`         | Pytest code coverage              |
-| [pytest-mock](https://pypi.org/project/pytest-mock/)                                       | `3.14.0`        | Pytest mocker fixture             |
-| [mkdocs-include-markdown-plugin](https://pypi.org/project/mkdocs-include-markdown-plugin/) | `7.1.2`         | MkDocs Plugin include MkDn        |
-| [mkdocs-macros-plugin](https://mkdocs-macros-plugin.readthedocs.io/)                       | `1.3.7`         | MkDocs Plugin for macros          |
-| [mkdocs-material](https://squidfunk.github.io/mkdocs-material/)                            | `9.5.49`        | Documentation                     |
-| [mkdocstrings[python]](https://mkdocstrings.github.io/)                                    | `0.27.0`        | MkDocs Plugin for Python AutoDoc  |
-| [ruff](https://github.com/astral-sh/ruff)                                                  | `0.7.3`         | Fast linter and formatter         |
-| [uv](https://github.com/astral-sh/uv)                                                      | `0.5.1`         | Python package management         |
+| Prerequisite                                                                               | Minimum Version | Purpose                          |
+| ------------------------------------------------------------------------------------------ | --------------- | -------------------------------- |
+| [codecov](http://doc.pytest.org/en/latest/)                                                | `2.1.13`        | Cover coverage reporting         |
+| [invoke](https://www.pyinvoke.org/)                                                        | `2.2.0`         | Command automation               |
+| [mypy](https://mypy-lang.org/)                                                             | `1.13.0`        | Static type checker              |
+| [pytest](https://docs.pytest.org/en/stable/)                                               | `3.0.6`         | Unit and integration tests       |
+| [pytest-cov](http://doc.pytest.org/en/latest/)                                             | `6.0.0`         | Pytest code coverage             |
+| [pytest-mock](https://pypi.org/project/pytest-mock/)                                       | `3.14.0`        | Pytest mocker fixture            |
+| [mkdocs-include-markdown-plugin](https://pypi.org/project/mkdocs-include-markdown-plugin/) | `7.1.2`         | MkDocs Plugin include MkDn       |
+| [mkdocs-macros-plugin](https://mkdocs-macros-plugin.readthedocs.io/)                       | `1.3.7`         | MkDocs Plugin for macros         |
+| [mkdocs-material](https://squidfunk.github.io/mkdocs-material/)                            | `9.5.49`        | Documentation                    |
+| [mkdocstrings[python]](https://mkdocstrings.github.io/)                                    | `0.27.0`        | MkDocs Plugin for Python AutoDoc |
+| [ruff](https://github.com/astral-sh/ruff)                                                  | `0.7.3`         | Fast linter and formatter        |
+| [uv](https://github.com/astral-sh/uv)                                                      | `0.5.1`         | Python package management        |
 
 If Python is already installed in your machine, run the following commands to validate the versions:
 

Pipfile

@@ -14,7 +14,6 @@ cmd2 = { editable = true, path = "." }
 cmd2_ext_test = { editable = true, path = "plugins/ext_test" }
 codecov = "*"
 gnureadline = { version = "*", sys_platform = "== 'darwin'" }
-griffe-typingdoc = "*"
 invoke = "*"
 ipython = "*"
 mypy = "*"