Install `yq` by APT on ubuntu of gh-actions.

`brew intall` on Ubuntu is too slow (about 1 min)

.github/workflows/ci.yml

@@ -29,8 +29,18 @@ jobs:
         with:
           ruby-version: '2.6.x'
 
-      - name: install tooling
+      - name: Install tools (for Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
         run: |
+          sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys CC86BB64
+          sudo add-apt-repository ppa:rmescandon/yq
+          sudo apt update
+          sudo apt install yq -y
+
+      - name: Install tools (for macOS)
+        if: matrix.os == 'macos-latest'
+        run: |
+          brew install coreutils
           brew install yq
 
       - name: Checkout
@@ -47,11 +57,6 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-gems-
 
-      - name: Install GNU-Coreutils(for macOS)
-        if: runner.os == 'macOS'
-        run: |
-          brew install coreutils
-
       - name: Bundle config
         run: |
           bundle config path vendor/bundle

.github/workflows/pages-deploy.yml.hook

@@ -17,15 +17,18 @@ jobs:
         with:
           ruby-version: '2.6.x'
 
+      - name: Install tools
+        run: |
+          sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys CC86BB64
+          sudo add-apt-repository ppa:rmescandon/yq
+          sudo apt update
+          sudo apt install yq -y
+
       - name: Checkout
         uses: actions/checkout@v2
         with:
           fetch-depth: 0
 
-      - name: Install yq 
-        run: |
-          brew install yq
-
       - name: Bundle Caching
         id: bundle-cache
         uses: actions/cache@v1