CI: GitHub actions update (#256)

* CI: Drop Python 3.7 from testing, bump actions

* CI: Bump actions, add isort check

Author: mgxd

.github/workflows/pytest.yml

@@ -7,6 +7,17 @@ on:
   pull_request:
     branches: [ master, 'maint/*' ]
 
+defaults:
+  run:
+    shell: bash
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
 jobs:
   build:
     if: "!contains(github.event.head_commit.message, '[skip ci]')"
@@ -17,10 +28,10 @@ jobs:
 
     steps:
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         fetch-depth: 0
     - name: Install nibabies

.github/workflows/style.yml

@@ -7,20 +7,27 @@ on:
   pull_request:
     branches: [ master, 'maint/*' ]
 
+defaults:
+  run:
+    shell: bash
+
+permissions:
+  contents: read
+
 jobs:
   build:
     if: "!contains(github.event.head_commit.message, '[skip ci]')"
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9]
+        python-version: ['3.9']
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         fetch-depth: 1  # Only fetch the latest commit
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -29,3 +36,5 @@ jobs:
     - name: black code formatting check
       run: |
         black --check nibabies/
+    - name: isort formatting check
+      run: isort nibabies/ --check-only