Merge pull request #4034 from planetarium/prepare/5.5.2

Prepare 5.5.2

Author: s2quake

CHANGES.md

@@ -1,6 +1,12 @@
 Libplanet changelog
 ===================
 
+Version 5.5.2
+-------------
+
+To be released.
+
+
 Version 5.5.1
 -------------
 

Directory.Build.props

@@ -4,7 +4,7 @@
     <TargetFrameworks Condition="'$(_IsPacking)'=='true'">net6.0</TargetFrameworks>
     <TargetFramework Condition="'$(_IsPacking)'!='true'">net6.0</TargetFramework>
     <LangVersion>10</LangVersion>
-    <VersionPrefix>5.5.1</VersionPrefix>
+    <VersionPrefix>5.5.2</VersionPrefix>
     <!-- Note: don't be confused by the word "prefix" here.  It's merely a
     version without suffix like "-dev.123".  See the following examples:
     Version: 1.2.3-dev.456