Prepare Release using 'release-plan' (#406)

Co-authored-by: NullVoxPopuli <199018+NullVoxPopuli@users.noreply.github.com>

.release-plan.json

@@ -1,10 +1,14 @@
 {
   "solution": {
     "ember-cli-flash": {
-      "impact": "patch",
-      "oldVersion": "5.0.0",
-      "newVersion": "5.0.1",
+      "impact": "minor",
+      "oldVersion": "5.0.1",
+      "newVersion": "5.1.0",
       "constraints": [
+        {
+          "impact": "minor",
+          "reason": "Appears in changelog section :rocket: Enhancement"
+        },
         {
           "impact": "patch",
           "reason": "Appears in changelog section :bug: Bug Fix"
@@ -13,5 +17,5 @@
       "pkgJSONPath": "./ember-cli-flash/package.json"
     }
   },
-  "description": "## Release (2024-02-02)\n\nember-cli-flash 5.0.1 (patch)\n\n#### :bug: Bug Fix\n* `ember-cli-flash`\n  * [#404](https://github.com/adopted-ember-addons/ember-cli-flash/pull/404) Publish files ([@NullVoxPopuli](https://github.com/NullVoxPopuli))\n\n#### :house: Internal\n* `test-app`\n  * [#402](https://github.com/adopted-ember-addons/ember-cli-flash/pull/402) Bump ember-qunit in test-app ([@gilest](https://github.com/gilest))\n\n#### Committers: 2\n- Giles Thompson ([@gilest](https://github.com/gilest))\n- [@NullVoxPopuli](https://github.com/NullVoxPopuli)\n"
+  "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"
 }

CHANGELOG.md

@@ -1,4 +1,24 @@
 # Changelog
+
+## Release (2024-02-29)
+
+ember-cli-flash 5.1.0 (minor)
+
+#### :rocket: Enhancement
+* `ember-cli-flash`
+  * [#405](https://github.com/adopted-ember-addons/ember-cli-flash/pull/405) Add `FlashMessage` to TypeScript definitions ([@charlesfries](https://github.com/charlesfries))
+
+#### :bug: Bug Fix
+* `ember-cli-flash`
+  * [#399](https://github.com/adopted-ember-addons/ember-cli-flash/pull/399) fix(types): add typesVersions map ([@simonihmig](https://github.com/simonihmig))
+
+#### :house: Internal
+* [#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))
+
+#### Committers: 3
+- Charles Fries ([@charlesfries](https://github.com/charlesfries))
+- Simon Ihmig ([@simonihmig](https://github.com/simonihmig))
+- [@NullVoxPopuli](https://github.com/NullVoxPopuli)
 ## Release (2024-02-02)
 
 ember-cli-flash 5.0.1 (patch)

ember-cli-flash/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ember-cli-flash",
-  "version": "5.0.1",
+  "version": "5.1.0",
   "description": "Simple, highly configurable flash messages for ember-cli",
   "keywords": [
     "ember-addon",