downloadUrl attribute is not used

[jedatwork]

I'm encountering a recurring issue with the current 19.253-6 collector installer where it throws the below error on install:
java.lang.UnsatisfiedLinkError: /tmp/kitchen/sumocollector.25886.dir/jre/lib/amd64/libfontmanager.so: libfreetype.so.6: cannot open shared object file: No such file or directory

I've been able to work around this issue by using the URL https://collectors.sumologic.com/rest/download/linux/64?version=19.245-6, however I'm unable to override the downloadUrl because the default provider hard codes the URL in installer_source.

Environment Information

Please include the following:

• version of cookbook: 1.4.0
• version of chef: 14.13.11
• operating system: CentOS 6
• resources that are affected by issue: attributes and default provider

Expected Behavior

What should have happened?
Overriding node['sumologic']['downloadUrl'] should have downloaded from the new URL

Actual Behavior

What actually happened?
The hard coded URL in installer_source was used and I got the installer missing the libfontmanager/libfreetype issue

Steps to Reproduce

Please list the steps required to reproduce the issue
Override the node['sumologic']['downloadUrl'] value in a role/.kitchen file; I'm unclear on how to verify the version since all files are saved as sumocollector, but as is currently I get the error and if I update installer_source to use node['sumologic']['downloadUrl'] the install succeeds.