Upgrade the bundled version of Apache Tomcat to 8.5.57

Issue Summary

The recently disclosed vulnerability regarding Apache Tomcat

• CVE-2020-13934

affects the following versions:

Apache Tomcat 8.x from 8.5.1 to 8.5.56
Apache Tomcat 9.x from 9.0.0.M5 to 9.0.36
Apache Tomcat 10.x from 10.0.0-M1 to 10.0.0-M6

Additionally, the following disclosed vulnerability regarding Tomcat:

• CVE-2020-13935

affects the following versions:

Apache Tomcat 7.x from 7.0.27 to 7.0.104
Apache Tomcat 8.x from 8.5.1 to 8.5.56
Apache Tomcat 9.x from 9.0.0.M5 to 9.0.36
Apache Tomcat 10.x from 10.0.0-M1 to 10.0.0-M6

We should bundle a more recent version of Tomcat so that Jira is not affected by this in the future.

Steps to Reproduce

• Check the CVE reports:
  • CVE-2020-13934
  • CVE-2020-13935

Expected Results

• Not applicable.

Actual Results

• Not applicable.

Workaround

• Manually upgrade Tomcat according to our documentation.