update github actions checkout to v2

.github/workflows/build-rc.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
 
     - name: Cache/Restore yarn cache
       uses: actions/cache@v1

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
         flavor: [default, nocdn]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
 
     - name: Determine suffix
       run: |
@@ -72,7 +72,7 @@ jobs:
     needs: build
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
 
     - name: Update Docker Hub Description
       uses: peter-evans/dockerhub-description@v2.1.0

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
         node-version: [12.x]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
@@ -70,7 +70,7 @@ jobs:
         node-version: [12.x]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
@@ -130,7 +130,7 @@ jobs:
         node-version: [12.x]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
@@ -184,7 +184,7 @@ jobs:
         node-version: [10.x, 12.x]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:

.github/workflows/release.yml

@@ -11,9 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
-      with:
-        fetch-depth: 1
+    - uses: actions/checkout@v2
 
     - name: Init Git
       run: |