Update `jquery-datetimepicker` dependency to make Wagtail more CSP-friendly (`unsafe-eval`). Fix #4329 (#4337)

* Update jquery-datetimepicker to 2.5.19

- Fixes an `eval()` CSP violation
- includes touch scroll fix from commit #87a7a7 (L909)

CHANGELOG.txt

@@ -12,6 +12,7 @@ Changelog
  * Remove outdated X-UA-Compatible meta from admin template  (Thibaud Colas)
  * Add JavaScript source maps in production build for packaged Wagtail (Thibaud Colas)
  * Removed `assert` statements from Wagtail API (Kim Chee Leong)
+ * Update `jquery-datetimepicker` dependency to make Wagtail more CSP-friendly (`unsafe-eval`) (Mike Kamermans)
  * Fix: Status button on 'edit page' now links to the correct URL when live and draft slug differ (LB (Ben Johnston))
  * Fix: Image title text in the gallery and in the chooser now wraps for long filenames (LB (Ben Johnston), Luiz Boaretto)
  * Fix: Move image editor action buttons to the bottom of the form on mobile (Julian Gallo)

CONTRIBUTORS.rst

@@ -286,6 +286,7 @@ Contributors
 * Dan Swain
 * Alexs Mathilda
 * Tony Yates
+* Mike Kamermans
 
 Translators
 ===========

docs/releases/2.1.rst

@@ -26,6 +26,7 @@ Other features
 * Remove outdated X-UA-Compatible meta from admin template  (Thibaud Colas)
 * Add JavaScript source maps in production build for packaged Wagtail (Thibaud Colas)
 * Removed ``assert`` statements from Wagtail API (Kim Chee Leong)
+* Update `jquery-datetimepicker` dependency to make Wagtail more CSP-friendly (`unsafe-eval`) (Mike Kamermans)
 
 Bug fixes
 ~~~~~~~~~