Add python 3.14 to supported versions (#1599)

* Add python 3.14 to our supported versions and to our CI
* Convert to use pyproject.toml standard dependency groups
* Fix any issues reported by CI

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.13]
+        python-version: [3.14]
     steps:
       - name: Checkout Source Files
         id: checkout
@@ -51,7 +51,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.11, 3.12, 3.13]
+        python-version: [3.11, 3.12, 3.13, 3.14]
         os: [ubuntu-latest, macos-latest, windows-latest]
         extras: [false, true]
         exclude: