Update github action setup-go to version 1.1.3

Fixes a security vulnerability that allowed environment variables and
path injection in workflows that log untrusted data to STDOUT, possibly
resulting in environment variables being introducd or modified without
the intention of the workflow operator.

Ref: https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/

Author: awgreene

.github/workflows/go.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Set up Go 1.13
-      uses: actions/[email protected].2
+      uses: actions/[email protected].3
       with:
         go-version: 1.13
       id: go