Update sensu-plugin requirement from ~> 2.7 to >= 2.7, < 5.0

Updates the requirements on [sensu-plugin](https://github.com/sensu-plugins/sensu-plugin) to permit the latest version.
- [Release notes](https://github.com/sensu-plugins/sensu-plugin/releases)
- [Changelog](https://github.com/sensu-plugins/sensu-plugin/blob/master/CHANGELOG.md)
- [Commits](sensu-plugins/sensu-plugin@2.7.0...4.0.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

sensu-plugins-microsoft-teams.gemspec

@@ -30,7 +30,7 @@ Gem::Specification.new do |s| # rubocop:disable Metrics/BlockLength
   s.version                = SensuPluginsMicrosoftTeams::Version::VER_STRING
 
   s.add_runtime_dependency 'erubis', '~> 2.7'
-  s.add_runtime_dependency 'sensu-plugin', '~> 2.7'
+  s.add_runtime_dependency 'sensu-plugin', '>= 2.7', '< 5.0'
 
   s.add_development_dependency 'bundler',                   '~> 1.15'
   s.add_development_dependency 'github-markup',             '~> 3.0'