Bump node from 10.x to 12.x

Also use pinned volta versions in CI.

Author: mydea

.github/workflows/ci.yml

@@ -26,10 +26,7 @@ jobs:
     steps:
       - name: Checkout Code
         uses: actions/checkout@v2
-      - name: Install Node
-        uses: actions/setup-node@v1
-        with:
-          node-version: '^10'
+      - uses: volta-cli/action@v1
       # https://github.com/expo/expo-github-action/issues/20#issuecomment-541676895
       - name: Raise Watched File Limit
         run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
@@ -53,7 +50,7 @@ jobs:
       - name: Install Node
         uses: actions/setup-node@v1
         with:
-          node-version: '^10'
+          node-version: '^12'
       - name: Install Dependencies
         run: yarn install --frozen-lockfile
       - name: Prepare CI Environment
@@ -70,10 +67,7 @@ jobs:
     steps:
       - name: Checkout Code
         uses: actions/checkout@v2
-      - name: Install Node
-        uses: actions/setup-node@v1
-        with:
-          node-version: '^10'
+      - uses: volta-cli/action@v1
       - name: Raise Watched File Limit
         run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
       - name: Install Dependencies
@@ -100,10 +94,7 @@ jobs:
     steps:
       - name: Checkout Code
         uses: actions/checkout@v2
-      - name: Install Node
-        uses: actions/setup-node@v1
-        with:
-          node-version: '^10'
+      - uses: volta-cli/action@v1
       - name: Raise Watched File Limit
         run: echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p
       - name: Install Dependencies

package.json

@@ -122,7 +122,7 @@
     "hawk": "7"
   },
   "engines": {
-    "node": "10.* || >= 12.*"
+    "node": ">= 12.*"
   },
   "ember-addon": {
     "configPath": "tests/dummy/config",
@@ -139,7 +139,7 @@
     "proseWrap": "never"
   },
   "volta": {
-    "node": "10.23.0",
-    "yarn": "1.22.10"
+    "node": "12.22.9",
+    "yarn": "1.22.17"
   }
 }