chore: Introduce pip support and make uv optional

The current implementation of the pyproject.toml does not allow to
install all requirements for dev environments to be installed with pip.
While PEP 735 is accepted since almost two months, pip does not support
it yet.

Instead, we rely on PEP 621 and by using optional-dependencies we can
for now support pip by allowing to install the dev dependencies by
specifying extras, such as

pip install .[dev]

This can be reverted once pypa/pip#12963 is
resolved.

pyproject.toml

@@ -12,6 +12,7 @@ name = "gallia"
 version = "1.9.0"
 description = "Extendable Pentesting Framework"
 readme = "README.md"
+authors = [{name = "AISEC Pentesting Team"}]
 maintainers = [
     { name = "Stefan Tatschner", email = "[email protected]" },
     { name = "Tobias Specht", email = "[email protected]" },
@@ -48,7 +49,8 @@ dependencies = [
 "cursed-hr" = "gallia.cli.cursed_hr:main"
 "hr" = "gallia.cli.hr:main"
 
-[dependency-groups]
+# TODO: Change to dependency-groups once https://github.com/pypa/pip/issues/12963 is resolved
+[project.optional-dependencies]
 dev = [
     "Sphinx >=8.0",
     "construct-typing >=0.5.2,<0.7.0",