Allow ember-template-lint v5

Author: bertdeblock

.github/workflows/ci.yml

@@ -53,6 +53,25 @@ jobs:
 
       - run: yarn test
 
+  ember-template-lint:
+    name: ember-template-lint@${{ matrix.etlVersion }}
+    needs: [test]
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    strategy:
+      matrix:
+        etlVersion: [^4.0.0, 5.0.0-alpha.0]
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: volta-cli/action@v1
+        with:
+          node-version: 16.x
+      - run: yarn install --frozen-lockfile
+      - run: yarn add ember-template-lint@${{ matrix.etlVersion }} --dev
+      - run: yarn test
+
   floating-dependencies:
     name: Floating Dependencies
     runs-on: ubuntu-latest

package.json

@@ -33,7 +33,7 @@
     "prettier-linter-helpers": "^1.0.0"
   },
   "devDependencies": {
-    "ember-template-lint": "^4.0.0-beta.3",
+    "ember-template-lint": "^4.0.0",
     "eslint": "^8.2.0",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-node": "^11.0.0",
@@ -47,8 +47,8 @@
     "release-it-lerna-changelog": "^4.0.1"
   },
   "peerDependencies": {
-    "ember-template-lint": "^4.0.0",
-    "prettier": ">=1.18.1"
+    "ember-template-lint": ">= 4.0.0",
+    "prettier": ">= 1.18.1"
   },
   "engines": {
     "node": "^12.22.0 || ^14.17.0 || >=16.0.0"