Feat: reenable python 3.9

dovelet_core/pyproject.toml

@@ -7,7 +7,7 @@ name = "dovelet_core"
 dynamic = ["version"]
 description = "C++ binding to IHTA DSP features"
 readme = "README.md"
-requires-python = ">=3.12"
+requires-python = ">=3.9"
 authors = [
     { name = "Pascal Palenda", email = "pascal.palenda@akustik.rwth-aachen.de" },
 ]
@@ -16,6 +16,9 @@ classifiers = [
     "Development Status :: 1 - Planning",
     "License :: OSI Approved :: Apache Software License",
     "Programming Language :: Python",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: C++",

pyproject.toml

@@ -7,7 +7,7 @@ name = "dovelet"
 dynamic = ["version"]
 description = "DSP for Outdoor Virtual Environments: Layout and Evaluation Testbed"
 readme = "README.md"
-requires-python = ">=3.12"
+requires-python = ">=3.9"
 license = "Apache-2.0"
 keywords = []
 authors = [
@@ -16,6 +16,9 @@ authors = [
 classifiers = [
     "Development Status :: 1 - Planning",
     "Programming Language :: Python",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",