Move clang dependency to conda develop packages. (#1092)

This moves the `clang` package to the `conda` section instead of `conda_and_requirements`, since it is not pip-installable (the `clang` package on PyPI is not the same thing).

Authors:
  - Bradley Dice (https://github.com/bdice)

Approvers:
  - AJ Schmidt (https://github.com/ajschmidt8)

URL: #1092

dependencies.yaml

@@ -30,7 +30,6 @@ dependencies:
         - numpy>=1.19
       develop:
         - black=22.3.0
-        - clang=11.1.0
         - cmakelang=0.6.13
         - flake8=3.8.3
         - gcovr>=5.0
@@ -52,6 +51,7 @@ dependencies:
       build:
         - spdlog>=1.8.5,<1.9
       develop:
+        - clang=11.1.0
         - clang-tools=11.1.0
     specific:
       - matrix: