Updates docker yumrepo default

[JasonWhall]

Addresses #378

The current default value is not valid and this default value is not reflected in the documentation.

This PR adds a valid yumrepo baseurl for CentOS 7 and updates documentation to reflect this value.

[puppet-community-rangefinder]

kubernetes is a class

Breaking changes to this file MAY impact these 5 modules (near match):

• jetstack-tarmak
• jetstack-fluent_bit
• jetstack-prometheus
• jetstack-calico
• jetstack-kubernetes_addons

kubernetes::repos is a class

that may have no external impact to Forge modules.

This module is declared in 0 of 575 indexed public Puppetfiles.

---

These results were generated with Rangefinder, a tool that helps predict the downstream impact of breaking changes to elements used in Puppet modules. You can run this on the command line to get a full report.

Exact matches are those that we can positively identify via namespace and the declaring modules' metadata. Non-namespaced items, such as Puppet 3.x functions, will always be reported as near matches only.

[codecov-commenter]

Codecov Report

Merging #436 into main will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##            main    #436   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          2       2           
  Lines         44      44           
=====================================
  Misses        44      44           

---

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[daianamezdrea]

Hi @JasonWhall, this looks good! Thank you four your contribution! Cheers!