RUBY-3726 Use new toolchain

[comandeo-mongo]

No description provided.

[Copilot]

Pull Request Overview

This PR implements a new toolchain setup for Ruby testing by replacing the previous set_env_ruby function with a custom rbenv installation that downloads pre-built Ruby versions from a MongoDB toolchain repository. The changes also modernize the test matrix by removing support for older MongoDB versions (3.6, 4.0, "latest") and adding JUnit XML test result output formatting.

Key changes:

• Replaces set_env_ruby with custom rbenv installation using pre-built Ruby toolchains
• Adds rspec_junit_formatter dependency and configures RSpec to output JUnit XML results
• Updates test matrix to remove MongoDB 3.6 and 4.0 support, removes "latest" version testing
• Adds require_mri to several integration test files to restrict them to MRI Ruby

Reviewed Changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
spec/shared	Updates submodule commit reference
spec/integration/versioned_api_examples_spec.rb	Adds MRI requirement
spec/integration/transaction_pinning_spec.rb	Adds MRI requirement
spec/integration/time_zone_querying_spec.rb	Adds MRI requirement
spec/integration/srv_monitoring_spec.rb	Adds MRI requirement
gemfiles/standard.rb	Adds rspec_junit_formatter dependency
.evergreen/run-tests.sh	Replaces set_env_ruby with custom rbenv setup and adds JUnit XML output
.evergreen/run-tests-serverless.sh	Replaces set_env_ruby with custom rbenv setup
.evergreen/run-tests-kerberos-unit.sh	Replaces set_env_ruby with custom rbenv setup and adds JUnit XML output
.evergreen/run-tests-kerberos-integration.sh	Replaces set_env_ruby with custom rbenv setup and adds JUnit XML output
.evergreen/run-tests-gcp.sh	Replaces set_env_ruby with custom rbenv setup
.evergreen/run-tests-ecs.sh	Replaces set_env_ruby with custom rbenv setup
.evergreen/run-tests-deployed-lambda.sh	Replaces set_env_ruby with custom rbenv setup
.evergreen/run-tests-azure.sh	Replaces set_env_ruby with custom rbenv setup
.evergreen/run-tests-atlas.sh	Replaces set_env_ruby with custom rbenv setup and adds JUnit XML output
.evergreen/run-tests-atlas-full.sh	Replaces set_env_ruby with custom rbenv setup and adds JUnit XML output
.evergreen/config/standard.yml.erb	Updates test matrix removing older MongoDB versions and latest, updates OS versions
.evergreen/config/common.yml.erb	Configures JUnit XML output path and re-enables test result uploads
.evergreen/config/axes.yml.erb	Removes "latest" MongoDB version axis and updates mmapv1 OS
.evergreen/config.yml	Generated config file reflecting all changes from ERB templates

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[Copilot]

Inconsistent indentation: line 102 uses a tab character while all other similar lines in the PR use spaces. This should use spaces for consistency.

Suggested change

	--format Rfc::Riff --format RspecJunitFormatter --out tmp/rspec.xml
	--format Rfc::Riff --format RspecJunitFormatter --out tmp/rspec.xml