Bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/test_suite.yml

@@ -15,7 +15,7 @@ jobs:
 #    runs-on: ubuntu-latest
 #    steps:
 #    - name: checkout
-#      uses: actions/checkout@v2
+#      uses: actions/checkout@v3
 #
 #    - name: setup node
 #      uses: actions/setup-node@v1
@@ -39,7 +39,7 @@ jobs:
 #    needs: [lintcode]
 #    steps:
 #    - name: checkout
-#      uses: actions/checkout@v2
+#      uses: actions/checkout@v3
 #
 #    - name: setup node
 #      uses: actions/setup-node@v1
@@ -62,7 +62,7 @@ jobs:
 #    needs: [lintcode,lintstyle]
 #    steps:
 #    - name: checkout
-#      uses: actions/checkout@v2
+#      uses: actions/checkout@v3
 #
 #    - name: setup node
 #      uses: actions/setup-node@v1
@@ -87,7 +87,7 @@ jobs:
 
       # CHECKOUTS
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       # CACHING
       - name: Install Meteor
@@ -144,7 +144,7 @@ jobs:
     needs: [tests]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Download coverage
         uses: actions/download-artifact@v2