treewide: run gofmt -s and enable linter

Change-Id: I90b8ef48c955dccfddc5bbc0a57205b7da844b60
Reviewed-on: https://review.monogon.dev/c/monogon/+/3828
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/cloud/bmaas/bmdb/sessions_test.go b/cloud/bmaas/bmdb/sessions_test.go
index 9806ddb..36fb4a4 100644
--- a/cloud/bmaas/bmdb/sessions_test.go
+++ b/cloud/bmaas/bmdb/sessions_test.go
@@ -613,9 +613,9 @@
 	// Wait for at least three workers to be alive.
 	for i := 0; i < 3; i++ {
 		select {
-			case workStarted <- struct{}{}:
-			case <-ctx.Done():
-				t.FailNow()
+		case workStarted <- struct{}{}:
+		case <-ctx.Done():
+			t.FailNow()
 		}
 	}