[Docs] Change office hours

Author: rengolin

llvm/docs/GettingInvolved.rst

@@ -351,7 +351,7 @@ The :doc:`CodeOfConduct` applies to all office hours.
     - English
   * - Renato Golin
     - General LLVM, MLIR & Linalg, distributed computing, research, socials.
-    - Every first Tuesday of the month, 11:00am UK time, for 60 minutes.
+    - Every first Friday of the month, 15:00 UK time, for 60 minutes.
     - `Google meet <https://meet.google.com/esg-fggc-hfe>`__
     - English, Portuguese
   * - Rotating hosts