BEHAVIOR: default to Python 3.9 in workflows (#53)

* DX: switch to Python 3.9 for dev environment

.github/workflows/ci-docs.yml

@@ -9,7 +9,7 @@ on:
         required: false
         type: boolean
       python-version:
-        default: "3.8"
+        default: "3.9"
         required: false
         type: string
       specific-pip-packages:

.github/workflows/docnb.yml

@@ -5,7 +5,7 @@ on:
         required: false
         type: string
       python-version:
-        default: "3.8"
+        default: "3.9"
         required: false
         type: string
       specific-pip-packages:

.github/workflows/linkcheck.yml

@@ -5,7 +5,7 @@ on:
         required: false
         type: string
       python-version:
-        default: "3.8"
+        default: "3.9"
         required: false
         type: string
 

.github/workflows/pre-commit.yml

@@ -2,7 +2,7 @@ on:
   workflow_call:
     inputs:
       python-version:
-        default: "3.8"
+        default: "3.9"
         required: false
         type: string
     secrets:

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

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.8"
+          python-version: "3.9"
       - name: Install dependencies
         run: |
           python3 -m pip install --upgrade pip

.github/workflows/pytest.yml

@@ -9,7 +9,7 @@ on:
         required: false
         type: string
       coverage-python-version:
-        default: "3.8"
+        default: "3.9"
         required: false
         type: string
       coverage-target:

.gitpod.yml

@@ -1,5 +1,5 @@
 tasks:
-  - init: pyenv local 3.8
+  - init: pyenv local 3.9
   - init: pip install -e .[dev]
 
 github:

.pre-commit-config.yaml

@@ -30,7 +30,7 @@ repos:
       - id: black
 
   - repo: https://github.com/ComPWA/policy
-    rev: 0.2.0
+    rev: 0.2.2
     hooks:
       - id: check-dev-files
         args:

create-pytest-matrix/action.yml

@@ -4,7 +4,7 @@ description: >-
 
 inputs:
   coverage-python-version:
-    default: "3.8"
+    default: "3.9"
     description: Python version on which to run the test coverage job.
     required: false
   coverage-target:
@@ -34,7 +34,7 @@ runs:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
-        python-version: "3.8"
+        python-version: "3.9"
     - run: pip install toml
       shell: bash
     - id: set-matrix

create-python-version-matrix/action.yml

@@ -4,7 +4,7 @@ description: >-
 
 inputs:
   coverage-python-version:
-    default: "3.8"
+    default: "3.9"
     description: Python version on which to run the test coverage job.
     required: false
   coverage-target:
@@ -30,7 +30,7 @@ runs:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
-        python-version: "3.8"
+        python-version: "3.9"
     - run: pip install toml
       shell: bash
     - id: set-matrix

environment.yml

@@ -2,7 +2,7 @@ name: compwa-actions
 channels:
   - defaults
 dependencies:
-  - python==3.8.*
+  - python==3.9.*
   - pip
   - pip:
       - -e .[dev]

get-pre-commit-taplo-version/action.yml

@@ -16,7 +16,7 @@ runs:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
-        python-version: "3.8"
+        python-version: "3.9"
     - run: python3 -m pip install PyYAML
       shell: bash
     - id: taplo

get-skipped-pre-commit-hooks/action.yml

@@ -17,7 +17,7 @@ runs:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
-        python-version: "3.8"
+        python-version: "3.9"
     - run: python3 -m pip install PyYAML
       shell: bash
     - id: set-hooks