Loosen rails version requirement

[rjpaskin]

No description provided.

[Copilot]

Pull Request Overview

This PR removes the upper version constraint (< 7.1) from Rails-related dependencies, allowing the gem to work with Rails 7.1 and later versions. The changes enable compatibility testing with Rails 7.0 while maintaining backward compatibility with Rails 4.2+.

Key Changes:

• Removed upper version limits on activerecord, activesupport, and railties dependencies
• Pinned bundler version in Docker entrypoint script
• Added Rails 7.0 dependencies to Gemfile for testing purposes

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
report_generator.gemspec	Removed < 7.1 version constraints from Rails dependencies to allow newer versions
docker-entrypoint.sh	Pinned bundler to version 2.4.22 for consistent builds
Gemfile	Added Rails 7.0 gems for testing compatibility with the loosened version requirements

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