Update Github Actions node version and firebase-tools/superstatic (#5897)

* Update Github Actions node version and firebase-tools/superstatic

* Update to latest setup-node job

Author: parlough

.github/workflows/build.yml

@@ -84,9 +84,9 @@ jobs:
         with:
           submodules: "recursive"
       - run: mkdir -p $TMP
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
       - uses: ruby/setup-ruby@v1
         if: contains(matrix.task, 'build')
         with:
@@ -142,9 +142,9 @@ jobs:
         with:
           submodules: "recursive"
       - run: mkdir -p $TMP
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
       - uses: ruby/setup-ruby@v1
         with:
           bundler-cache: true

package.json

@@ -14,12 +14,12 @@
   "devDependencies": {
     "canonical-path": "^1.0.0",
     "diff2html-cli": "^2.7.0",
-    "firebase-tools": "^7.6.2",
+    "firebase-tools": "^9.12.1",
     "fs-extra": "^7.0.1",
     "gulp": "^4.0.0",
     "gulp-cli": "^2.0.1",
     "gulp-imagemin": "^5.0.3",
-    "superstatic": "^6.0.4",
+    "superstatic": "^7.1.0",
     "yamljs": "^0.3.0",
     "yargs": "^12.0.5"
   }