Add rare typo brunch->branch

Author: skangas

codespell_lib/data/dictionary_rare.txt

@@ -23,6 +23,10 @@ bloc->block
 blocs->blocks
 bodgy->body
 brining->bringing
+brunch->branch
+brunched->branched
+brunches->branches
+brunching->branching
 bu->by, be, but, bug, bun, bud, buy, bum,
 buss->bus
 busses->buses