Update changelog.txt

Author: lucasborin

changelog.txt

@@ -12,7 +12,7 @@ Upgrade Note
 ------------------
 Whenever you upgrade code pal for ABAP, it is highly recommended to execute the Y_CI_CHECK_REGISTRATION report to activate/reactivate the Checks (SE38 transaction) and regenerate the respective code inspector variant (SCI transaction)
 
-2020-12-XX v1.10.0
+2020-12-14 v1.10.0
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 + New Check: Scope of the Variable (#276)
 * Comment position when code has pseudo comments (#282)