Switching from the unmaintained actions/setup-ruby to ruby/setup-ruby

Author: blast-hardcheese

.github/workflows/publish-website.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/setup-java@v1
         with:
           java-version: 8
-      - uses: actions/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1.66.1
         with:
           ruby-version: '2.6'
       - uses: actions/cache@v2

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/setup-java@v1
         with:
           java-version: 8
-      - uses: actions/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1.66.1
         with:
           ruby-version: '2.6'
       - uses: actions/cache@v2