der_derive: add workaround for syn v2.0.73
#1851
| Job | Run time |
|---|---|
| 51s | |
| 1m 0s | |
| 0s | |
| 1m 3s | |
| 36m 6s | |
| 32m 55s | |
| 56s | |
| 53s | |
| 1h 13m 44s |
syn v2.0.73
#1851
| Job | Run time |
|---|---|
| 51s | |
| 1m 0s | |
| 0s | |
| 1m 3s | |
| 36m 6s | |
| 32m 55s | |
| 56s | |
| 53s | |
| 1h 13m 44s |