bump version to 1.20 (#3315)

.github_changelog_generator

@@ -1,5 +1,5 @@
 unreleased=true
-future-release=1.19
+future-release=1.20
 exclude-labels=duplicate,support,question,invalid,wontfix,release,waiting for feedback,documentation
 enhancement_labels=>enhancement,Enhancement,feature request,translation i18n,technical debt,documentation
 issues-wo-labels=false

SECURITY.md

@@ -7,8 +7,8 @@ As announced in the [README](README.md) I only support the latest available rele
 | Version | Supported          |
 |---------|--------------------|
 | master  | :white_check_mark: |
-| 1.19    | :white_check_mark: |
-| < 1.19  | :x:                |
+| 1.20    | :white_check_mark: |
+| < 1.20  | :x:                |
 
 ## Reporting a Vulnerability
 

src/Constants.php

@@ -17,11 +17,11 @@ class Constants
     /**
      * The current release version
      */
-    public const VERSION = '1.19.8';
+    public const VERSION = '1.20';
     /**
      * The current release: major * 10000 + minor * 100 + patch
      */
-    public const VERSION_ID = 11908;
+    public const VERSION_ID = 12000;
     /**
      * The current release status, either "stable" or "dev"
      */