debug:

  Entries added to PATH to use selected Ruby:
    /opt/hostedtoolcache/Ruby/3.0.4/x64/bin
Error: Error: EACCES: permission denied, mkdir '/opt/hostedtoolcache'

.github/workflows/deploy.yml

@@ -48,11 +48,12 @@ jobs:
 
       - name: install dependencies.
         run: |
-          sudo apt-get update -y
-          sudo apt-get install -y cloud-utils
           whoami
+          ls -ltrh /
           ls -ltrh /opt
           ls -ltrh /opt/hostedtoolcache
+          sudo apt-get update -y
+          sudo apt-get install -y cloud-utils          
 
       - uses: ruby/setup-ruby@v1
         with: