Prepare Release using 'release-plan' (#401)

Co-authored-by: github-actions[bot] <github-actions-bot@users.noreply.github.com>

Author: github-actions[bot]

.release-plan.json

@@ -0,0 +1,29 @@
+{
+  "solution": {
+    "ember-cli-flash": {
+      "impact": "major",
+      "oldVersion": "4.0.0",
+      "newVersion": "5.0.0",
+      "constraints": [
+        {
+          "impact": "major",
+          "reason": "Appears in changelog section :boom: Breaking Change"
+        },
+        {
+          "impact": "minor",
+          "reason": "Appears in changelog section :rocket: Enhancement"
+        },
+        {
+          "impact": "patch",
+          "reason": "Appears in changelog section :bug: Bug Fix"
+        },
+        {
+          "impact": "patch",
+          "reason": "Appears in changelog section :house: Internal"
+        }
+      ],
+      "pkgJSONPath": "./ember-cli-flash/package.json"
+    }
+  },
+  "description": "## Release (2024-02-02)\n\nember-cli-flash 5.0.0 (major)\n\n#### :boom: Breaking Change\n* `ember-cli-flash`\n  * [#395](https://github.com/adopted-ember-addons/ember-cli-flash/pull/395) Move `@embroider/macros` to peers ([@gilest](https://github.com/gilest))\n* `ember-cli-flash`, `test-app`\n  * [#392](https://github.com/adopted-ember-addons/ember-cli-flash/pull/392) Replace blueprint with explicit test helpers ([@gilest](https://github.com/gilest))\n  * [#391](https://github.com/adopted-ember-addons/ember-cli-flash/pull/391)   Convert to V2 addon ([@gilest](https://github.com/gilest))\n\n#### :rocket: Enhancement\n* `ember-cli-flash`, `test-app`\n  * [#391](https://github.com/adopted-ember-addons/ember-cli-flash/pull/391)   Convert to V2 addon ([@gilest](https://github.com/gilest))\n* Other\n  * [#389](https://github.com/adopted-ember-addons/ember-cli-flash/pull/389) allow customization of exiting class ([@miguelcobain](https://github.com/miguelcobain))\n\n#### :bug: Bug Fix\n* `ember-cli-flash`\n  * [#398](https://github.com/adopted-ember-addons/ember-cli-flash/pull/398) Add missing `files` entry to addon package ([@gilest](https://github.com/gilest))\n\n#### :memo: Documentation\n* [#396](https://github.com/adopted-ember-addons/ember-cli-flash/pull/396) Correct test helper blueprint guide ([@gilest](https://github.com/gilest))\n* [#393](https://github.com/adopted-ember-addons/ember-cli-flash/pull/393) Update Contributing and Releasing with `pnpm` and monorepo paths ([@gilest](https://github.com/gilest))\n\n#### :house: Internal\n* `ember-cli-flash`, `test-app`\n  * [#400](https://github.com/adopted-ember-addons/ember-cli-flash/pull/400) Setup relase plan ([@NullVoxPopuli](https://github.com/NullVoxPopuli))\n\n#### Committers: 3\n- Giles Thompson ([@gilest](https://github.com/gilest))\n- Miguel Andrade ([@miguelcobain](https://github.com/miguelcobain))\n- [@NullVoxPopuli](https://github.com/NullVoxPopuli)\n"
+}

CHANGELOG.md

@@ -1,4 +1,37 @@
 # Changelog
+## Release (2024-02-02)
+
+ember-cli-flash 5.0.0 (major)
+
+#### :boom: Breaking Change
+* `ember-cli-flash`
+  * [#395](https://github.com/adopted-ember-addons/ember-cli-flash/pull/395) Move `@embroider/macros` to peers ([@gilest](https://github.com/gilest))
+* `ember-cli-flash`, `test-app`
+  * [#392](https://github.com/adopted-ember-addons/ember-cli-flash/pull/392) Replace blueprint with explicit test helpers ([@gilest](https://github.com/gilest))
+  * [#391](https://github.com/adopted-ember-addons/ember-cli-flash/pull/391)   Convert to V2 addon ([@gilest](https://github.com/gilest))
+
+#### :rocket: Enhancement
+* `ember-cli-flash`, `test-app`
+  * [#391](https://github.com/adopted-ember-addons/ember-cli-flash/pull/391)   Convert to V2 addon ([@gilest](https://github.com/gilest))
+* Other
+  * [#389](https://github.com/adopted-ember-addons/ember-cli-flash/pull/389) allow customization of exiting class ([@miguelcobain](https://github.com/miguelcobain))
+
+#### :bug: Bug Fix
+* `ember-cli-flash`
+  * [#398](https://github.com/adopted-ember-addons/ember-cli-flash/pull/398) Add missing `files` entry to addon package ([@gilest](https://github.com/gilest))
+
+#### :memo: Documentation
+* [#396](https://github.com/adopted-ember-addons/ember-cli-flash/pull/396) Correct test helper blueprint guide ([@gilest](https://github.com/gilest))
+* [#393](https://github.com/adopted-ember-addons/ember-cli-flash/pull/393) Update Contributing and Releasing with `pnpm` and monorepo paths ([@gilest](https://github.com/gilest))
+
+#### :house: Internal
+* `ember-cli-flash`, `test-app`
+  * [#400](https://github.com/adopted-ember-addons/ember-cli-flash/pull/400) Setup relase plan ([@NullVoxPopuli](https://github.com/NullVoxPopuli))
+
+#### Committers: 3
+- Giles Thompson ([@gilest](https://github.com/gilest))
+- Miguel Andrade ([@miguelcobain](https://github.com/miguelcobain))
+- [@NullVoxPopuli](https://github.com/NullVoxPopuli)
 
 The noteworthy changes made to Ember-CLI-Flash are included here. For a complete
 changelog, see the git history.

ember-cli-flash/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ember-cli-flash",
-  "version": "4.0.0",
+  "version": "5.0.0",
   "description": "Simple, highly configurable flash messages for ember-cli",
   "keywords": [
     "ember-addon",