Hold back packages that need newer golang (#270)

Signed-off-by: Stephen Finucane <[email protected]>

Author: stephenfin

.github/dependabot.yaml

@@ -5,8 +5,12 @@ updates:
   schedule:
     interval: daily
   open-pull-requests-limit: 10
+  ignore:
+  # These dependencies are skipped because they require a newer version of go:
+  - dependency-name: "golang.org/x/sys"
+  - dependency-name: "golang.org/x/text"
 - package-ecosystem: "github-actions"
   directory: "/"
-  schedule: 
+  schedule:
     interval: daily
   open-pull-requests-limit: 10