Add CI run running on oldest supported versions of core dependencies

.github/workflows/ci.yml

@@ -40,11 +40,12 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: Linux (3.10, mamba)
+          - name: Linux (3.10, mamba, oldest-deps)
             os: ubuntu-latest
             python-version: "3.10"
             install-method: mamba
             extras: tests,all
+            extra-args: ["oldest-deps"]
 
           - name: Linux (3.10, pip)
             os: ubuntu-latest
@@ -143,7 +144,11 @@ jobs:
           pip install -e ".[${EXTRAS}]"
           pip install ./test_plugin
           pip freeze
-          pip list
+
+      - if: contains(matrix.extra-args, 'oldest-deps') && contains(github.event.pull_request.labels.*.name, 'documentation-only') == false
+        run: |
+          micromamba install -n cta-dev -y numpy=1.24 numba=0.57 scipy=1.10 astropy=6.1 matplotlib=3.6
+          micromamba list -n cta-dev
 
       - name: ctapipe-info
         if: contains(github.event.pull_request.labels.*.name, 'documentation-only') == false

environment.yml

@@ -5,7 +5,7 @@ channels:
 dependencies:
   - python=3.11
   - pip
-  - astropy>=5.3,<8
+  - astropy>=6.1,<8
   - black
   - bokeh=3
   - nbsphinx
@@ -19,7 +19,7 @@ dependencies:
   - jupyter
   - matplotlib
   - numba>=0.56
-  - numpy>=1.22
+  - numpy>=1.24
   - numpydoc
   - pandas
   - pypandoc

pyproject.toml

@@ -30,17 +30,17 @@ dynamic = ["version"]
 requires-python = ">=3.10"
 
 dependencies = [
-    "astropy >=5.3,<8.0.0a0",
+    "astropy >=6.1,<8.0.0a0",
     "docutils",
     "joblib",
-    "numba >=0.56",
-    "numpy >=1.23,<3.0.0a0",
+    "numba >=0.57",
+    "numpy >=1.24,<3.0.0a0",
     "packaging",
     "psutil",
     "pyyaml >=5.1",
     "requests",
     "scikit-learn !=1.4.0", # 1.4.0 breaks with astropy tables, before and after works
-    "scipy ~=1.2",
+    "scipy ~=1.10",
     "tables ~=3.4",
     "tqdm >=4.32",
     "traitlets ~=5.6",