Update deps and Go to 1.18

Changes

• Update Go and modules to resolve security vulns by @abtreece in #115
• Properly set errors for SSM GetParametersByPath... by @abtreece in #117

Updates

• Bump github/codeql-action from 1 to 2 by @dependabot in #80
• Bump github.com/fsnotify/fsnotify from 1.5.1 to 1.5.4 by @dependabot in #82
• Bump go.etcd.io/etcd/client/v3 from 3.5.2 to 3.5.4 by @dependabot in #83
• Bump github.com/hashicorp/vault/api from 1.5.0 to 1.7.2 by @dependabot in #92
• Bump github.com/hashicorp/consul/api from 1.12.0 to 1.13.1 by @dependabot in #97
• Bump github.com/go-zookeeper/zk from 1.0.2 to 1.0.3 by @dependabot in #100
• Bump github.com/sirupsen/logrus from 1.8.1 to 1.9.0 by @dependabot in #101
• Bump github.com/aws/aws-sdk-go from 1.43.36 to 1.44.66 by @dependabot in #103
• Bump github.com/aws/aws-sdk-go from 1.44.93 to 1.44.94 by @dependabot in #116
• Bump github.com/aws/aws-sdk-go from 1.44.94 to 1.44.95 by @dependabot in #118

Full Changelog: v0.19.0...v0.19.1