Fix typo in release notes template

Signed-off-by: Daniel Zullo <[email protected]>

Author: daniel-zullo-frequenz

.github/RELEASE_NOTES.template.md

@@ -6,7 +6,7 @@
 
 ## Upgrading
 
-<!-- Here goes notes on how to upgrade from previous versions, including if there are any depractions and what they should be replaced with -->
+<!-- Here goes notes on how to upgrade from previous versions, including if there are any deprecations and what they should be replaced with -->
 
 ## New Features