Misc. typos (#8694)

Found via `codespell -q 3 --skip="./app/javascript/mastodon/locales,./config/locales"`

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/mastodon/migration_helpers.rb b/lib/mastodon/migration_helpers.rb
index e154b5a2c..5c135685f 100644
--- a/lib/mastodon/migration_helpers.rb
+++ b/lib/mastodon/migration_helpers.rb
@@ -835,7 +835,7 @@ module Mastodon
       columns(table).find { |column| column.name == name }
     end
 
-    # This will replace the first occurance of a string in a column with
+    # This will replace the first occurrence of a string in a column with
     # the replacement
     # On postgresql we can use `regexp_replace` for that.
     # On mysql we find the location of the pattern, and overwrite it