Unpin pandas (#72)

* unpin pandas

* fix

Author: frances-h

deepecho/models/base.py

@@ -248,6 +248,6 @@ def sample(self, num_entities=None, context=None, sequence_length=None):
             for column, value in zip(self._context_columns, context_values):
                 group[column] = value
 
-            output = output.append(group)
+            output = pd.concat([output, group])
 
         return output[self._output_columns].reset_index(drop=True)

setup.py

@@ -14,8 +14,8 @@
 install_requires = [
     "numpy>=1.20.0,<2;python_version<'3.10'",
     "numpy>=1.23.3,<2;python_version>='3.10'",
-    "pandas>=1.1.3,<2;python_version<'3.10'",
-    "pandas>=1.3.4,<2;python_version>='3.10'",
+    "pandas>=1.1.3;python_version<'3.10'",
+    "pandas>=1.3.4;python_version>='3.10'",
     "torch>=1.8.0;python_version<'3.10'",
     "torch>=1.11.0;python_version>='3.10'",
     'tqdm>=4.15,<5',