[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

src/content/deadlines/06_mentorship.md

@@ -1,6 +1,6 @@
 ---
 title: Speakers' Workshop
-subtitle: Already Taken Place 
+subtitle: Already Taken Place
 url: https://forms.gle/T8rc73sbyu3KbLNKA
 image: "mentorship1.jpg"
 ---