maint: switch to resolution lowest-direct

.github/workflows/notebooks-check_ubuntu.yml

@@ -29,7 +29,7 @@ jobs:
           python-version: 3.9
       - name: Install the project
         run: |
-          uv pip install -r requirements.txt --resolution lowest --system
+          uv pip install -r requirements.txt --resolution lowest-direct --system
           uv pip install -r requirements-dev.txt --system
       - name: Test
         run: |

requirements.txt

@@ -1,13 +1,10 @@
 astroplan>=0.8
 astropy>=5.2.0.a
-pyyaml>=6.0.2
 astroquery>=0.4.8
 ipyaladin>=0.3.0
 MOCpy>=0.15.0
-matplotlib>=3.6
 pandas>=2.0.3
 plotly>=5.14.0.a
 pyvo>=1.4.1
 regions>=0.7
-requests>=2.4.3
 specutils>=1.9.0.a