⬆️ Bump poetry from 1.0.5 to 1.0.9

Bumps [poetry](https://github.com/python-poetry/poetry) from 1.0.5 to 1.0.9.
- [Release notes](https://github.com/python-poetry/poetry/releases)
- [Changelog](https://github.com/python-poetry/poetry/blob/master/CHANGELOG.md)
- [Commits](python-poetry/poetry@1.0.5...1.0.9)

Also hash the environment.yml file to avoid conda complaining about "The environment is inconsistent, please check the package plan carefully". Bumped snappy to a newer 1.1.8 build version for good measure.

.github/workflows/python-app.yml

@@ -40,7 +40,7 @@ jobs:
             /usr/share/miniconda3/envs/deepicedrain
           key: cache-venv-${{ github.ref }}-${{ hashFiles('**/environment.yml') }}-${{ hashFiles('**/poetry.lock') }}-${{ hashFiles('**/deepicedrain/*.py') }}
           restore-keys: |
-            cache-venv-refs/heads/master-
+            cache-venv-refs/heads/master-${{ hashFiles('**/environment.yml') }}-
 
       - name: Install conda dependencies
         shell: bash -l {0}

environment.yml

@@ -8,7 +8,7 @@ dependencies:
   - conda-forge::nodejs=13.13.0[md5=cf25f8cee7aad7f417980872d34d8fd6]
   - conda-forge::parallel=20200522[md5=8fa06db0afc1e7b1f136277557a4b65e]
   - conda-forge::pip=20.1.1[md5=5e42afe5672d5baf3d9d2260239aa923]
-  - conda-forge::poetry=1.0.5[md5=171d7400c2aae11e3a3a30055de3eaa7]
+  - conda-forge::poetry=1.0.9[md5=8f0019c82ec6795bcc84fc711b1d72e4]
   - conda-forge::proj=6.3.1[md5=dc4391dda7677c7299248d9754672526]
   - conda-forge::python=3.8.3[md5=05f7e9adaf1f49dad884929ab0245ddc]
-  - conda-forge::snappy=1.1.8[md5=a263bb8916842a5881b1168e3cdcfea3]
+  - conda-forge::snappy=1.1.8[md5=83f1dc295c711bdbaf97e1f3bedf2f52]