Prepare Release using 'release-plan' (#408)

Co-authored-by: knownasilya <34726+knownasilya@users.noreply.github.com>

Author: github-actions[bot]

.release-plan.json

@@ -1,21 +1,21 @@
 {
   "solution": {
     "ember-cli-flash": {
-      "impact": "minor",
-      "oldVersion": "5.0.1",
-      "newVersion": "5.1.0",
+      "impact": "major",
+      "oldVersion": "5.1.0",
+      "newVersion": "6.0.0",
       "constraints": [
         {
-          "impact": "minor",
-          "reason": "Appears in changelog section :rocket: Enhancement"
+          "impact": "major",
+          "reason": "Appears in changelog section :boom: Breaking Change"
         },
         {
-          "impact": "patch",
-          "reason": "Appears in changelog section :bug: Bug Fix"
+          "impact": "minor",
+          "reason": "Appears in changelog section :rocket: Enhancement"
         }
       ],
       "pkgJSONPath": "./ember-cli-flash/package.json"
     }
   },
-  "description": "## Release (2024-02-29)\n\nember-cli-flash 5.1.0 (minor)\n\n#### :rocket: Enhancement\n* `ember-cli-flash`\n  * [#405](https://github.com/adopted-ember-addons/ember-cli-flash/pull/405) Add `FlashMessage` to TypeScript definitions ([@charlesfries](https://github.com/charlesfries))\n\n#### :bug: Bug Fix\n* `ember-cli-flash`\n  * [#399](https://github.com/adopted-ember-addons/ember-cli-flash/pull/399) fix(types): add typesVersions map ([@simonihmig](https://github.com/simonihmig))\n\n#### :house: Internal\n* [#407](https://github.com/adopted-ember-addons/ember-cli-flash/pull/407) Update release-plan to get the latest bugfixes ([@NullVoxPopuli](https://github.com/NullVoxPopuli))\n\n#### Committers: 3\n- Charles Fries ([@charlesfries](https://github.com/charlesfries))\n- Simon Ihmig ([@simonihmig](https://github.com/simonihmig))\n- [@NullVoxPopuli](https://github.com/NullVoxPopuli)\n"
+  "description": "## Release (2025-03-04)\n\nember-cli-flash 6.0.0 (major)\n\n#### :boom: Breaking Change\n* `ember-cli-flash`, `test-app`\n  * [#409](https://github.com/adopted-ember-addons/ember-cli-flash/pull/409) Modernise `FlashMessagesService` ([@gilest](https://github.com/gilest))\n  * [#394](https://github.com/adopted-ember-addons/ember-cli-flash/pull/394) Convert `FlashObject` to native class ([@gilest](https://github.com/gilest))\n* `ember-cli-flash`\n  * [#410](https://github.com/adopted-ember-addons/ember-cli-flash/pull/410) Remove computed decorators from FlashMessage component ([@gilest](https://github.com/gilest))\n\n#### :rocket: Enhancement\n* `ember-cli-flash`\n  * [#411](https://github.com/adopted-ember-addons/ember-cli-flash/pull/411) fix: add type for spreaded `FlashObject` options ([@charlesfries](https://github.com/charlesfries))\n\n#### :house: Internal\n* `test-app`\n  * [#415](https://github.com/adopted-ember-addons/ember-cli-flash/pull/415) Upgrade test-app to v5 app blueprint ([@gilest](https://github.com/gilest))\n\n#### Committers: 2\n- Charles Fries ([@charlesfries](https://github.com/charlesfries))\n- Giles Thompson ([@gilest](https://github.com/gilest))\n"
 }

CHANGELOG.md

@@ -1,5 +1,28 @@
 # Changelog
 
+## Release (2025-03-04)
+
+ember-cli-flash 6.0.0 (major)
+
+#### :boom: Breaking Change
+* `ember-cli-flash`, `test-app`
+  * [#409](https://github.com/adopted-ember-addons/ember-cli-flash/pull/409) Modernise `FlashMessagesService` ([@gilest](https://github.com/gilest))
+  * [#394](https://github.com/adopted-ember-addons/ember-cli-flash/pull/394) Convert `FlashObject` to native class ([@gilest](https://github.com/gilest))
+* `ember-cli-flash`
+  * [#410](https://github.com/adopted-ember-addons/ember-cli-flash/pull/410) Remove computed decorators from FlashMessage component ([@gilest](https://github.com/gilest))
+
+#### :rocket: Enhancement
+* `ember-cli-flash`
+  * [#411](https://github.com/adopted-ember-addons/ember-cli-flash/pull/411) fix: add type for spreaded `FlashObject` options ([@charlesfries](https://github.com/charlesfries))
+
+#### :house: Internal
+* `test-app`
+  * [#415](https://github.com/adopted-ember-addons/ember-cli-flash/pull/415) Upgrade test-app to v5 app blueprint ([@gilest](https://github.com/gilest))
+
+#### Committers: 2
+- Charles Fries ([@charlesfries](https://github.com/charlesfries))
+- Giles Thompson ([@gilest](https://github.com/gilest))
+
 ## Release (2024-02-29)
 
 ember-cli-flash 5.1.0 (minor)

ember-cli-flash/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ember-cli-flash",
-  "version": "5.1.0",
+  "version": "6.0.0",
   "description": "Simple, highly configurable flash messages for ember-cli",
   "keywords": [
     "ember-addon",

stderr.log

@@ -0,0 +1,2 @@
+Warning: unknown package "test-app"
+Warning: unknown package "test-app"