Remove expired link to dashboard

Author: encukou

docs/monthly-meeting/2023-08.md

@@ -41,7 +41,7 @@ Please take a second to read through it!
   - Pradyun will file an issue
 
 - [Hugo] Plausible trial update
-  - [Public Dashboard](https://plausible.io/docs.python.org/)
+  - Public Dashboard [link expired]
   - Would be too expensive to pay for hosted version
   - Should be easy to host it ourselves on PSF infra
   - Next step: