Update changelog.yml

changelog.yml

@@ -1,27 +1,27 @@
 ---
-- version: unreleased
-  summary: 
-  date: 
+- version: 1.5.2
+  summary:
+  date: '2020-06-26'
   fixed:
   - "`Result#{success?,failure?}` work as expected when there are only key validation
     failures (issue #297 fixed via #298) (@adamransom)"
-  added: 
+  added:
   changed:
   - 'Using `full` option no longer adds a space between the name of a key and the
     message in case of languages that have no spaces between words (ie Japanese) (issue
     #161 closed via #292 by @tadeusz-niemiec)'
 - version: 1.5.1
-  summary: 
+  summary:
   date: '2020-05-21'
   fixed:
   - 'Negated predicates support the logic operator API now (fixed via #276 by @solnic)'
   - 'Fixed circular require warning (issue #279 closed via #282 by @landongrindheim)'
   - 'Validating keys against an array with non-hash members no longer crashes (issue
     #283 fixed via #284 by @beechnut and issue #289 fixed via #288 by @tadeusz-niemiec)'
-  added: 
-  changed: 
+  added:
+  changed:
 - version: 1.5.0
-  summary: 
+  summary:
   date: '2020-03-11'
   fixed:
   - |-