add lmfit dependency

Author: JR-1991

.github/workflows/unit-tests.yaml

@@ -20,7 +20,7 @@ jobs:
       - name: Install dependencies
         run: |
           python3 -m pip install --upgrade pip
-          python3 -m pip install pytest-cov openpyxl pytest-httpx pysces
+          python3 -m pip install pytest-cov openpyxl pytest-httpx pysces lmfit
           pip3 install -e .
 
       - name: Test with pytest

pyproject.toml

@@ -23,6 +23,7 @@ joblib = "^1.5.0"
 
 [tool.poetry.group.psyces.dependencies]
 pysces = "^1.2.3"
+lmfit = "^1.3.3"
 
 [tool.poetry.group.excel.dependencies]
 openpyxl = "^3.1.4"