Bump env cache build.

Author: trexfeathers

.github/workflows/ci-tests.yml

@@ -91,7 +91,7 @@ jobs:
       - name: "conda environment cache"
         uses: ./.github/workflows/composite/conda-env-cache
         with:
-          cache_build: 0
+          cache_build: 1
           cache_period: ${{ env.CACHE_PERIOD }}
           env_name: ${{ env.ENV_NAME }}
           install_packages: "cartopy nox pip"