updating ci to run on python 3.10, setting minimum python version at …

…3.10, removing poliastro install requirement

.github/workflows/build-status.yml

@@ -12,14 +12,15 @@ jobs:
   build:
     name: Build
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v2
-
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v2
-      with:
-        python-version: 3.9
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+      - name: Display Python  
+        run: python -c "import sys; print(sys.version)"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

requirements.txt

@@ -2,4 +2,3 @@ numpy
 scipy
 astropy
 sympy
-poliastro

setup.cfg

@@ -9,9 +9,9 @@ long_description= file:README.md
 long_description_content_type=text/markdown
 license = MIT
 classifiers=
-    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
     License :: OSI Approved :: BSD License
     Operating System :: OS Independent
 
@@ -22,6 +22,5 @@ install_requires=
     numpy
     scipy
     astropy
-    sympy==1.12
-    poliastro
-python_requires = >= 3.7
+    sympy
+python_requires = >= 3.10