[actions] use node/install instead of node/run

Author: ljharb

.github/workflows/node-4+.yml

@@ -57,14 +57,14 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/run@main
-        name: 'npm install && npm run tests-only'
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install ${{ matrix.node-version }} && npm install'
         with:
-          after_install: NPM_CONFIG_LEGACY_PEER_DEPS=true npm install --no-save "eslint@${{ matrix.eslint }}"
           node-version: ${{ matrix.node-version }}
-          command: 'unit-test'
-          after_success: 'npm run coveralls'
+          after_install: NPM_CONFIG_LEGACY_PEER_DEPS=true npm install --no-save "eslint@${{ matrix.eslint }}"
           skip-ls-check: true
+      - run: npm run unit-test
+      - run: npm run coveralls
 
   node:
     name: 'node 4+'

.github/workflows/node-pretest.yml

@@ -8,21 +8,21 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/run@main
-        name: 'npm install && npm run pretest'
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install lts/* && npm install'
         with:
           node-version: 'lts/*'
-          command: 'pretest'
           skip-ls-check: true
+      - run: npm run pretest
 
   posttest:
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/run@main
-        name: 'npm install && npm run posttest'
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install lts/* && npm install'
         with:
           node-version: 'lts/*'
-          command: 'posttest'
           skip-ls-check: true
+      - run: npm run posttest

.github/workflows/readme.yml

@@ -8,9 +8,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: ljharb/actions/node/run@main
-        name: 'npm install && npm run generate-list-of-rules'
+      - uses: ljharb/actions/node/install@main
+        name: 'nvm install lts/* && npm install'
         with:
           node-version: 'lts/*'
-          command: 'generate-list-of-rules'
-          skip-ls-check: true
+          skip-ls-check: true
+      - run: npm run generate-list-of-rules