v3.0-beta.28

• 🐛 Fixed 2 Windows bugs that caused all jobs that ran through our built-in buildkite-agent bootstrap command to fail #496
• 🐞 The agent will now poll the AWS EC2 Tags API until it finds some tags to apply before continuing. In some cases, the agent will start and connect to Buildkite before the tags are available. The timeout for this polling can be configured with --wait-for-ec2-tags-timeout (which defaults to 10 seconds) #492