Update node (#972)

* update current node

* Rewrite github action steps with v2 modules

Author: marocchino

.github/workflows/pull_request.yml

@@ -5,11 +5,11 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: '12.x'
-      - uses: actions/cache@v1
+      - uses: actions/cache@v2
         id: cache
         with:
           path: node_modules

.github/workflows/push.yml

@@ -8,11 +8,11 @@ jobs:
     name: build & deploy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
           node-version: '12.x'
-      - uses: actions/cache@v1
+      - uses: actions/cache@v2
         id: cache
         with:
           path: node_modules

.tool-versions

@@ -1 +1 @@
-nodejs 12.13.1
+nodejs 12.17.0

package.json

@@ -33,4 +33,4 @@
     "hexo-server": "^0.2.0",
     "replacestream": "^4.0.0"
   }
-}
+}