CI: drop Go 1.15, 1.16

dolmen · dolmen · commit 1f921902b3bf · 2023-03-14T22:25:44.000+01:00
Drop support of Go 1.15, 1.16 because of recent golang.org/x/sys which
stopped supporting them.
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -17,8 +17,6 @@ jobs:
           - '1.18'
           - '1.19'
           - '1.17'
-          - '1.16'
-          - '1.15'
     steps:
       - uses: actions/setup-go@v2
         with:

-Original file line number
+Diff line change
           - '1.18'
           - '1.19'
           - '1.17'
 -          - '1.16'
 -          - '1.15'
     steps:
       - uses: actions/setup-go@v2
         with: