Use setup-python@v2 and checkout@v2 for CI

Author: zonuexe

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
         - emacs_version: snapshot
           allow_failure: true
     steps:
-    - uses: actions/setup-python@v1.1.1
+    - uses: actions/setup-python@v2
       with:
         python-version: '3.6'
         architecture: 'x64'
@@ -33,7 +33,7 @@ jobs:
     - uses: conao3/setup-cask@master
       with:
         version: 'snapshot'
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Run tests
       if: matrix.allow_failure != true
       run: 'make test'