Bump frenck/action-addon-linter from 2 to 2.1 (#11)

Bumps [frenck/action-addon-linter](https://github.com/frenck/action-addon-linter) from 2 to 2.1.
- [Release notes](https://github.com/frenck/action-addon-linter/releases)
- [Commits](frenck/action-addon-linter@v2...v2.1)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/lint.yaml

@@ -12,7 +12,7 @@ jobs:
       - name: ⤵️ Check out code from GitHub
         uses: actions/checkout@v2.3.4
       - name: 🚀 Run Home Assistant Add-on Lint
-        uses: frenck/action-addon-linter@v2
+        uses: frenck/action-addon-linter@v2.1
         with:
           path: "./test"