Remove MANIFEST.in and update to Python 3.10-3.14

- Remove obsolete MANIFEST.in file (now using hatchling)
- Update Python classifiers to 3.10-3.14
- Update GitHub Actions workflows to test Python 3.10-3.14
- Remove PyPy from workflows

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: rnixx

.github/workflows/test.yml

@@ -14,11 +14,11 @@ jobs:
         - ubuntu-latest
 
         python:
-        - "3.9"
-        - "3.10"
-        - "3.11"
-        - "3.12"
-        - "3.13"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+          - "3.14"
 
     steps:
     - uses: actions/checkout@v4

MANIFEST.in

@@ -18,11 +18,11 @@ classifiers = [
     "Topic :: Software Development",
     "Topic :: System :: Systems Administration :: Authentication/Directory :: LDAP",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 2.7",
-    "Programming Language :: Python :: 3.7",
-    "Programming Language :: Python :: 3.8",
-    "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 :: 3.14",
 ]
 dependencies = [
     'argparse;python_version<"3.2"',