15.3.3

What's Changed

• Bump serve-static and express by @dependabot in #182
• [pre-release] update application insights to 3.3.3 by @siyuniu-ms in #187
• Bump serve-static and express in /sample/applicationinsights-angularplugin-sample by @dependabot in #186
• [Release] Increase version to 15.3.3 by @siyuniu-ms in #188

Full Changelog: 15.3.2...15.3.3