update env creation

Author: FynnBe

.github/workflows/build.yaml

@@ -127,6 +127,7 @@ jobs:
         activate-environment: ${{steps.setup.outputs.env-name}}
         channel-priority: strict
         miniforge-version: latest
+        python-version: ${{ matrix.python-version }}
     - name: Get Date
       id: get-date
       run: |
@@ -145,8 +146,13 @@ jobs:
         CACHE_NUMBER: 0
       id: cache-env
     - name: Install env
-      run: conda env update --name=${{steps.setup.outputs.env-name}} --file=${{steps.setup.outputs.env-file}} python=${{matrix.python-version}} numpy=${{matrix.numpy-version}}
       if: steps.cache-env.outputs.cache-hit != 'true'
+      run: |
+        conda env update --name=${{steps.setup.outputs.env-name}} --file=${{steps.setup.outputs.env-file}}
+    - name: Ensure Python/numpy version
+      # if: steps.cache-env.outputs.cache-hit != 'true'  # TODO: skip this step on cache hits once the caches are all updated
+      run: |
+        conda install python=${{matrix.python-version}} numpy=${{matrix.numpy-version}}
     - name: Install uncached pip dependencies
       run: |
         pip install --upgrade pip