Pin numpy <2, bump Python in conda env

Author: tomalrussell

.environment.yml

@@ -6,14 +6,14 @@ channels:
 - conda-forge
 - defaults
 dependencies:
-- python=3.6
+- python=3.12
 - codecov  # test
 - fiona
 - flask
 - isodate
 - minio
 - networkx
-- numpy
+- numpy <2
 - pandas
 - pint
 - psycopg2
@@ -33,3 +33,4 @@ dependencies:
   - mypy  # dev
   - minio
   - pre-commit  # dev
+  - -e .

requirements.txt

@@ -6,7 +6,7 @@ Flask>=0.12
 isodate>=0.6
 minio
 networkx>=1.11
-numpy>=1.11
+numpy>=1.11,<2
 pandas
 Pint>=0.8
 psycopg2>=2.7