Prepare release 3.3.0

spec/changelog.yml

@@ -4,17 +4,17 @@
 ##
 - version: 3.4.0-next
   changes:
-    - description: Add support for content packages.
+    - description: Add support for `slo` assets.
       type: enhancement
-      link: https://github.com/elastic/package-spec/pull/777
+      link: https://github.com/elastic/package-spec/pull/767
     - description: Add support for semantic_text field definition
       type: enhancement
       link: https://github.com/elastic/package-spec/pull/807
-- version: 3.3.0-next
+- version: 3.3.0
   changes:
-    - description: Add support for `slo` assets.
+    - description: Add support for content packages.
       type: enhancement
-      link: https://github.com/elastic/package-spec/pull/767
+      link: https://github.com/elastic/package-spec/pull/777
 - version: 3.2.3
   changes:
     - description: Add support for identity of agentless deployment mode, and make it mandatory when this mode is enabled.

spec/content/spec.yml

@@ -54,7 +54,7 @@ spec:
     $ref: "../integration/validation.spec.yml"
 
 versions:
-  - before: 3.4.0
+  - before: 3.3.0
     patch:
       - op: remove
         path: "/contents" # Package type not available before this version.

spec/integration/kibana/spec.yml

@@ -137,7 +137,7 @@ spec:
       forbiddenPatterns:
         - '^.+-(ecs|ECS)\.json$' # ECS suffix is forbidden 
 versions:
-  - before: 3.3.0
+  - before: 3.4.0
     patch:
       - op: remove
         path: "/contents/13" # remove SLO definitions

test/packages/good_v3/manifest.yml

@@ -1,4 +1,4 @@
-format_version: 3.3.0
+format_version: 3.4.0
 name: good_v3
 title: Good package
 description: This package is good for format version 3