feat: Add Ruby 2.7.2 to the prebuilt binary list (#193)

Author: dazuma

Rakefile

@@ -22,7 +22,7 @@ NODEJS_VERSION="14.15.1"
 GCLOUD_VERSION="319.0.0"
 OS_NAME="ubuntu16"
 
-LOCAL_PREBUILT_RUBY_VERSIONS=["2.4.10", "2.5.8", "2.6.6", "2.7.1"]
+LOCAL_PREBUILT_RUBY_VERSIONS=["2.4.10", "2.5.8", "2.6.6", "2.7.2"]
 LOCAL_PREBUILT_RUBY_IMAGE_BASE="ruby-prebuilt-"
 LOCAL_PREBUILT_RUBY_IMAGE_TAG="latest"
 RELEASED_PREBUILT_RUBY_VERSIONS=::File.readlines("ruby-pipeline/ruby-latest.yaml")

ruby-pipeline/ruby-latest.yaml

@@ -60,6 +60,7 @@ steps:
            '--prebuilt-image=2.6.6=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.6.6:latest',
            '--prebuilt-image=2.7.0=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.7.0:latest',
            '--prebuilt-image=2.7.1=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.7.1:latest',
+           '--prebuilt-image=2.7.2=gcr.io/gcp-runtimes/ruby/ubuntu16/prebuilt/ruby-2.7.2:latest',
            '--default-ruby-version=2.6.6']
   - name: 'gcr.io/cloud-builders/docker:latest'
     args: ['build', '--network=cloudbuild', '-t', '$_OUTPUT_IMAGE', '.']