[static] move cip-82 release notes from 0.5.6 to 0.5.7

Signed-off-by: Jose Velasco <jose.velasco@intellecteu.com>

Author: jose-velasco-ieu

docs/src/release_notes.rst

@@ -5,9 +5,7 @@
 
 .. _release_notes:
 
-.. release-notes:: upcoming
-
-.. release-notes:: 0.5.6
+.. release-notes:: 0.5.7
 
   .. important::
 
@@ -99,6 +97,8 @@
     - Add a new config field to ``SvOnboardingConfig`` named ``unclaimedDevelopmentFundCouponsThreshold`` defining the
       threshold above which ``UnclaimedDevelopmentFundCoupon`` s are merged. The default value is set to 10.
 
+.. release-notes:: 0.5.6
+
   - Sequencer
 
     - Includes a number of performance improvements that should improve the stability of the sequencer under higher load.