(PR #35) Bump python version to 3.9

Bump python version to 3.9

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
  timeout-minutes: 30
  strategy:
  matrix:
- python-version: ["3.8"]
+ python-version: ["3.9"]
  backend: ['django']
 
  services:
@@ -56,10 +56,10 @@ jobs:
  timeout-minutes: 15
  steps:
  - uses: actions/checkout@v2
- - name: Set up Python 3.8
+ - name: Set up Python 3.9
  uses: actions/setup-python@v2
  with:
- python-version: 3.8
+ python-version: 3.9
  - name: Install python dependencies
  run: |
  pip install --upgrade pip
@@ -72,10 +72,10 @@ jobs:
  timeout-minutes: 15
  steps:
  - uses: actions/checkout@v2
- - name: Set up Python 3.8
+ - name: Set up Python 3.9
  uses: actions/setup-python@v2
  with:
- python-version: 3.8
+ python-version: 3.9
  - name: Install python dependencies
  run: |
  pip install --upgrade pip

.github/workflows/publish-on-pypi.yml

@@ -15,10 +15,10 @@ jobs:
  - name: Checkout repository
  uses: actions/checkout@v2
 
- - name: Set up Python 3.8
+ - name: Set up Python 3.9
  uses: actions/setup-python@v1
  with:
- python-version: 3.8
+ python-version: 3.9
 
  - name: Install flit
  run: |

.readthedocs.yml

@@ -1,7 +1,7 @@
 version: 2
 
 python:
- version: 3.8
+ version: 3.9
  install:
  - method: pip
  path: .

pyproject.toml

@@ -25,7 +25,7 @@ classifiers = [
  "Framework :: AiiDA"
 ]
 keywords = ["aiida", "plugin", "aurora"]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 dependencies = [
  "aiida-core>=2.0,<3",
  "aiida-ssh2win>=0.2",