github actions: Update checkout action to v2 (#210)

Fixes a bug where checkout fails making the build check also fails.

Signed-off-by: Marc Lopez <marc5.12@outlook.com>

Author: marclop

.github/workflows/go.yml

@@ -14,7 +14,7 @@ jobs:
       id: go
 
     - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
+      uses: actions/checkout@v2
 
     - name: Cache Go Modules
       uses: actions/cache@v1

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2
 
       - name: Set up Go
         uses: actions/setup-go@v1