Removed need for .nvmrc

.github/workflows/checkly.yml

@@ -22,9 +22,6 @@ jobs:
           fetch-depth: 0
       - name: Set branch name # workaround to detect branch name in "deployment_status" actions
         run: echo "CHECKLY_TEST_REPO_BRANCH=$(git show -s --pretty=%D HEAD | tr -s ',' '\n' | sed 's/^ //' | grep -e 'origin/' | head -1 | sed 's/\origin\///g')" >> $GITHUB_ENV
-      - uses: actions/setup-node@v3
-        with:
-          node-version-file: ".nvmrc"
       - name: Restore or cache node_modules
         id: cache-node-modules
         uses: actions/cache@v3