Merge #16914: doc: Update homebrew instruction for doxygen

14c6a2d [doc] update brew instruction for doxygen (Sjors Provoost)

Pull request description:

  I noticed while testing #16912 that `brew install doxygen --with-graphviz` no long works. Instead you need to use `brew install graphviz doxygen`.

ACKs for top commit:
  fanquake:
    ACK 14c6a2d - tested a `make docs` on macOS with and without `graphviz` (`dot`) available.

Tree-SHA512: 2682568e558c16e9e0a657421c449b74cc14a89771844c1c88623fb75b07b89afb63c45a919eb7b9c3dba9bdfaef21489b5f7ea45a08d8d5da18614657c19e47

Author: fanquake

doc/developer-notes.md

@@ -193,7 +193,7 @@ Documentation can be generated with `make docs` and cleaned up with `make clean-
 
 Before running `make docs`, you will need to install dependencies `doxygen` and `dot`. For example, on macOS via Homebrew:
 ```
-brew install doxygen --with-graphviz
+brew install graphviz doxygen
 ```
 
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