Bump Go version to 1.13 (#31)

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

Author: marclop

.github/workflows/go.yml

@@ -3,15 +3,14 @@ name: Go
 on: [push, pull_request]
 
 jobs:
-
   build:
     name: Build
     runs-on: ubuntu-latest
     steps:
-    - name: Set up Go 1.12
+    - name: Set up Go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.12
+        go-version: 1.13
       id: go
 
     - name: Check out code into the Go module directory