Set correct env cache param

.github/workflows/lint.yml

@@ -42,7 +42,7 @@ jobs:
           path: /usr/share/miniconda/envs/biowdl-lint
           key:
             ${{runner.os}}-biowdl-lint-${{ env.CACHE_NUMBER }}-${{ hashFiles('.github/lint-environment.yml') }}
-          id: env_cache
+        id: env_cache
 
       - name: install miniconda
         uses: conda-incubator/setup-miniconda@v2.1.1