docs fixes: Remove old breaking changes/deprecrations from releases & ignore .Rmd in Quarto renders
#681
| Job | Run time |
|---|---|
| 3m 20s | |
| 3m 20s |
.Rmd in Quarto renders
#681
| Job | Run time |
|---|---|
| 3m 20s | |
| 3m 20s |