try manually installing ruby 2.7.2

cat5inthecradle · cat5inthecradle · commit f388a7762e1b · 2022-06-15T15:55:33.000-05:00
diff --git a/.ruby-version b/.ruby-version
@@ -1 +1 @@
-2.7.6
+2.7.2
diff --git a/cicd/3-app/javabuilder/pr-buildspec.yml b/cicd/3-app/javabuilder/pr-buildspec.yml
@@ -6,8 +6,9 @@ phases:
       java: corretto11
       python: 3.8
     commands:
-      - echo $RBENV_VERSION
       - rbenv versions
+      # downgrade from 2.7.6 or whatever runtime got installed
+      - rbenv install 2.7.2
       - rbenv rehash
       - ruby -v
       - gem install bundler
