Update prettier and run it on YAML (#74)

.github/dependabot.yml

@@ -1,9 +1,9 @@
 version: 2
 updates:
   # Enable version updates for npm
-  - package-ecosystem: "npm"
+  - package-ecosystem: 'npm'
     # Look for `package.json` and `lock` files in the `root` directory
-    directory: "/"
+    directory: '/'
     # Check the npm registry for updates every day (weekdays)
     schedule:
-      interval: "daily"
+      interval: 'daily'

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: "build-test"
+name: 'build-test'
 on: # rebuild any PRs and main branch changes
   pull_request:
   push:
@@ -10,15 +10,15 @@ jobs:
   build: # make sure build/ci work properly
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - run: |
-        npm install
-    - run: |
-        npm run all
+      - uses: actions/checkout@v2
+      - run: |
+          npm install
+      - run: |
+          npm run all
   test: # make sure the action works on a clean machine without building
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: ./
-      with: 
-        milliseconds: 1000
+      - uses: actions/checkout@v2
+      - uses: ./
+        with:
+          milliseconds: 1000