switch to reframe due to deprecation

```
Warning message:
Returning more (or less) than 1 row per `summarise()` group was deprecated in dplyr 1.1.0.
ℹ Please use `reframe()` instead.
ℹ When switching from `summarise()` to `reframe()`, remember that `reframe()` always returns an ungrouped data frame
  and adjust accordingly.
ℹ The deprecated feature was likely used in the ggethos package.
  Please report the issue to the authors.
````