www/tomcat7: Update to version 7.0.104

This update fixes the following CVEs:

CVE-2020-9484
CVE-2020-1938
CVE-2020-1935
CVE-2019-17569
CVE-2019-17563
CVE-2019-12418
CVE-2019-0232
CVE-2019-0221

http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.104

PR: 247563
Submitted by: vvd@unislabs.com
Approved by: ports-secteam (zi)