Test with Python 3.14 (#466)

* Update pyproject.toml

* Update pipeline.yml

* Update environment.yml

Author: jan-janssen

.github/workflows/pipeline.yml

@@ -48,7 +48,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.13"
+          python-version: "3.14"
           architecture: x64
       - name: Checkout
         uses: actions/checkout@v4
@@ -107,7 +107,7 @@ jobs:
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           miniforge-version: latest
           condarc-file: .condarc
           environment-file: environment.yml
@@ -161,7 +161,7 @@ jobs:
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           miniforge-version: latest
           condarc-file: .condarc
           environment-file: .ci_support/environment.yml
@@ -181,16 +181,19 @@ jobs:
       matrix:
         include:
           - operating-system: macos-latest
-            python-version: '3.13'
+            python-version: '3.14'
 
           - operating-system: windows-latest
-            python-version: '3.13'
+            python-version: '3.14'
 
           - operating-system: ubuntu-24.04-arm
-            python-version: '3.13'
+            python-version: '3.14'
 
           - operating-system: ubuntu-22.04-arm
-            python-version: '3.13'
+            python-version: '3.14'
+
+          - operating-system: ubuntu-latest
+            python-version: '3.14'
 
           - operating-system: ubuntu-latest
             python-version: '3.13'

pyproject.toml

@@ -17,7 +17,7 @@ authors = [
 readme = "README.md"
 license = { file = "LICENSE" }
 keywords = ["pyiron"]
-requires-python = ">=3.9, <3.14"
+requires-python = ">=3.9, <3.15"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Topic :: Scientific/Engineering :: Physics",
@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
 dependencies = [
     "jinja2==3.1.6",