Bump actions/checkout from v2.3.0 to v2.3.1 (#38)

Bumps [actions/checkout](https://github.com/actions/checkout) from v2.3.0 to v2.3.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/master/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2.3.0...28c7f3d2b5162b5ddd3dfd9a45aa55eaf396478b)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.0
+        uses: actions/checkout@v2.3.1
       -
         name: Get test key and passphrase
         uses: actions/github-script@v2
@@ -67,7 +67,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.0
+        uses: actions/checkout@v2.3.1
       -
         name: Get test key and passphrase
         uses: actions/github-script@v2

.github/workflows/labels.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.0
+        uses: actions/checkout@v2.3.1
       -
         name: Run Labeler
         if: success()

.github/workflows/pre-checkin.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.0
+        uses: actions/checkout@v2.3.1
       -
         name: Install
         run: yarn install

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2.3.0
+        uses: actions/checkout@v2.3.1
       -
         name: Install
         run: yarn install