Merge branch 'psych-fix' into test-psych

* psych-fix:
  Attempt to fix psych test flakiness
  DEBUG-2334 respect maxFieldCount in probe specification (#4142)
  Revert "Run the cucumber test in unbundled environment" (#4143)
  Update guard rails and doc (Excluding 3.4 installation)
  Lower declared requirements
  Use CentOS 7 images for SSI
  DEBUG-2334 require ostruct for OpenStruct dependency (#4135)
  DEBUG-2334 Set duration to 0 for DI line probes (#4134)

.gitlab-ci.yml

@@ -31,7 +31,7 @@ default:
   parallel:
     matrix:
       # ADD NEW RUBIES HERE
-      - RUBY_VERSION: ["3.2.2", "3.1.4", "3.0.6", "2.7.8"]
+      - RUBY_VERSION: ["3.4", "3.3", "3.2", "3.1", "3.0", "2.7"]
   script:
     - >
       docker build
@@ -60,7 +60,7 @@ promote-image:
   parallel:
     matrix:
       # ADD NEW RUBIES HERE
-      - RUBY_VERSION: ["3.2.2", "3.1.4", "3.0.6", "2.7.8"]
+      - RUBY_VERSION: ["3.4", "3.3", "3.2", "3.1", "3.0", "2.7"]
         ARCHITECTURE: ["amd64", "arm64"]
   script:
     - docker pull $RUBY_CUSTOM_IMAGE_BASE/$RUBY_VERSION-$ARCHITECTURE:$CI_PIPELINE_ID
@@ -92,7 +92,8 @@ install-dependencies:
   tags: [ "arch:$ARCH" ]
   parallel:
     matrix:
-      - RUBY_VERSION: ["2.7.8", "3.0.6", "3.1.4", "3.2.2"]
+      # Promote again when adding 3.4 support
+      - RUBY_VERSION: ["3.3", "3.2", "3.1", "3.0", "2.7"]
         ARCH: [ "amd64", "arm64" ]
   stage: package
   needs:

.gitlab/Dockerfile-2.7

@@ -0,0 +1 @@
+FROM ghcr.io/datadog/images-rb/engines/ruby:2.7-centos-gcc

.gitlab/Dockerfile-3.0

@@ -0,0 +1 @@
+FROM ghcr.io/datadog/images-rb/engines/ruby:3.0-centos-gcc

.gitlab/Dockerfile-3.1

@@ -0,0 +1 @@
+FROM ghcr.io/datadog/images-rb/engines/ruby:3.1-centos-gcc

.gitlab/Dockerfile-3.2

@@ -0,0 +1 @@
+FROM ghcr.io/datadog/images-rb/engines/ruby:3.2-centos-gcc