refactor(support): drop support for stylelint v11 and v12

BREAKING CHANGE: support for stylelint v11, v12 dropped

.github/workflows/node.yml

@@ -7,9 +7,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: actions/setup-node@v2
-      with:
-        node-version: '15'
     - run: npm i
     - run: npm run lint:js
     - run: npm run lint:prettier
@@ -26,16 +23,13 @@ jobs:
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm i
-    - run: npm run test:tav
+    - run: npm run test
 
   coverage:
     needs: [test]
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: actions/setup-node@v2
-      with:
-        node-version: '15'
     - run: npm i
     - run: npm run test:coverage
     - uses: codecov/codecov-action@v1
@@ -49,9 +43,6 @@ jobs:
       with:
         fetch-depth: 0
         persist-credentials: false
-    - uses: actions/setup-node@v2
-      with:
-        node-version: '15'
     - run: npm i
     - run: npm run semantic-release
       env:

.gitignore

@@ -6,3 +6,6 @@ package-lock.json
 
 # Coveralls coverage
 /coverage
+
+# System files
+.DS_Store

package.json

@@ -6,15 +6,14 @@
   "scripts": {
     "codecov": "codecov",
     "test": "cross-env BROWSERSLIST_DISABLE_CACHE=true BROWSERSLIST='IE 8' jest",
-    "test:tav": "tav",
     "test:coverage": "cross-env BROWSERSLIST_DISABLE_CACHE=true BROWSERSLIST='IE 8' jest --coverage",
     "lint:prettier": "prettier --list-different '**/*.js'",
     "lint:js": "eslint '**/*.js'",
     "semantic-release": "semantic-release",
     "postinstall": "husky install"
   },
   "peerDependencies": {
-    "stylelint": ">=11.1.1"
+    "stylelint": ">=13.0.0"
   },
   "dependencies": {
     "doiuse": "^4.3.1",
@@ -42,8 +41,7 @@
     "lint-staged": "^10.4.2",
     "prettier": "^2.1.2",
     "semantic-release": "^17.2.2",
-    "stylelint": "^13.7.2",
-    "test-all-versions": "^5.0.1"
+    "stylelint": "^13.7.2"
   },
   "author": "ismay",
   "license": "MIT",