Merge pull request #166 from pllim/action-ver-hash

MNT: Use hash for Action workflow versions and update if needed

.github/dependabot.yml

@@ -0,0 +1,15 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: ".github/workflows" # Location of package manifests
+    schedule:
+      interval: "monthly"
+    groups:
+      actions:
+        patterns:
+          - "*"

.github/workflows/ci.yml

@@ -18,11 +18,11 @@ jobs:
         python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
         os: [ubuntu-latest, macos-latest, windows-latest]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938  # v4.2.0
         with:
           fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3  # v5.2.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -45,11 +45,11 @@ jobs:
             os: ubuntu-latest
             name: oldest-dependencies
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938  # v4.2.0
         with:
           fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3  # v5.2.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install oldest dependencies