fixed tests3

Author: bbcho

.github/workflows/ci.yml

@@ -26,6 +26,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -e ".[dev,docs]"
+          pip install igraph networkx searoute
 
       - name: Run tests
         run: |

.github/workflows/docs.yml

@@ -30,7 +30,6 @@ jobs:
       - name: Install dependencies
         run: |
           pip install -e ".[all]"
-          pip install igraph networkx searoute
 
       - name: Build docs
         run: mkdocs build