Security update for tomcat

This update for tomcat to version 9.0.21 fixes the following issues:

Security issues fixed:

- CVE-2019-0199: Fixed a denial of service in the HTTP/2 implementation related to
streams with excessive numbers of SETTINGS frames (bsc#1131055).
- CVE-2019-0221: Fixed a cross site scripting vulnerability with the SSI printenv command (bsc#1136085).

Non-security issues fixed:

- Increase maximum number of threads and open files for tomcat (bsc#1111966).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Fixed bugs
bnc#1136085
VUL-0: CVE-2019-0221: tomcat: XSS in SSI printenv
bnc#1111966
hanging SUSE Manager gui due to lack of open files
bnc#1131055
VUL-0: CVE-2019-0199: tomcat: Apache Tomcat HTTP/2 DoS
Selected Binaries
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