[Agent 1.1.2] Update version of the agent to 1.1.2
[Agent 1.1.2] Update version of the agent to 1.1.2

Why is this change needed?
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Prior to this change, Agent version was set to 1.1.1, so for the new release we need to set to 1.1.2

How does it address the issue?
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This change will update the patch version of the agent, for new release 1.1.2

aws/aws-codedeploy-agent,aws/aws-codedeploy-agent