fix(script/test): Move coverage profile to repository root for reporting

Author: ofeefo

script/test

@@ -15,13 +15,10 @@ fi
 go mod download
 go mod tidy
 if [[ "$COVER" == "yes" ]]; then
-  OUT="./coverage/c.out"
+  OUT="./c.out"
   HTML="./coverage/c.html"
   go test ./... -covermode=count -coverprofile="$OUT"
   go tool cover -html="$OUT" -o "$HTML"
-  rm "$OUT"
 else
   go test ./...
 fi
-
-