Update CHANGELOG.md for 13.1.1+ce.0

[ci skip]

CHANGELOG.md

@@ -3,6 +3,17 @@
 The latest version of this file can be found at the master branch of the
 omnibus-gitlab repository.
+## 13.1.1 (2020-06-23)
+
+### Fixed (1 change)
+
+- Manually disable copy_file_range() on RedHat kernels. !4346
+
+### Added (1 change)
+
+- Update to Grafana 7. !4297
+
+
 ## 13.1.0 (2020-06-22)
 ### Removed (1 change)

changelogs/unreleased/bjk-grafana_7.yml

----
-title: Update to Grafana 7
-merge_request: 4297
-author:
-type: added

changelogs/unreleased/sh-disable-copy-file-range-ruby.yml

----
-title: Manually disable copy_file_range() on RedHat kernels
-merge_request: 4346
-author:
-type: fixed