Merge pull request #52 from cisagov/improvement/workflows

Workflow improvements: 🦁 set-env, and 🐯 python-3.9, and 🐻 dependabot, oh my!

.github/dependabot.yml

@@ -0,0 +1,13 @@
+---
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/build.yml

@@ -18,11 +18,12 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.9
       - name: Store installed Python version
         run: |
-          echo "::set-env name=PY_VERSION::"\
-          "$(python -c "import platform;print(platform.python_version())")"
+          echo "PY_VERSION="\
+          "$(python -c "import platform;print(platform.python_version())")" \
+          >> $GITHUB_ENV
       - name: Cache linting environments
         uses: actions/cache@v2
         with: