allow service freeze/unfreeze on a setup (#13707)

an active running speedTest will reject all
new S3 requests to the server, until speedTest
is complete.

this is to ensure that speedTest results are
accurate and trusted.

Co-authored-by: Klaus Post <klauspost@gmail.com>

.github/workflows/go.yml

@@ -7,7 +7,7 @@ on:
 
 # This ensures that previous jobs for the PR are canceled when the PR is
 # updated.
-concurrency: 
+concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref }}
   cancel-in-progress: true
 
@@ -17,7 +17,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go-version: [1.16.x, 1.17.x]
+        go-version: [1.17.x]
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v2