Update contributor ladder

[afmarcum]

What kind of change does this PR introduce?

Reduces duration requirements in contributor ladder

• PR title follows the guidelines defined in our pull request documentation

What is the current behavior?

Triager requires 3 months as a community member
Maintainer requires 3 months as a triager

What is the new behavior (if this is a feature change)?**

Triager will only require 1 month as a community member
Maintainer will only require 1 month as a triager

• Tests for the changes have been added (for bug fixes/features)

Which issue(s) this PR fixes

Special notes for your reviewer

Does this PR introduce a user-facing change?

[codecov]

Codecov Report

Merging #3898 (9acc8e9) into main (b972699) will decrease coverage by 8.73%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3898      +/-   ##
==========================================
- Coverage   75.50%   66.78%   -8.73%     
==========================================
  Files         231      231              
  Lines       15669    15669              
==========================================
- Hits        11831    10464    -1367     
- Misses       3109     4583    +1474     
+ Partials      729      622     -107     

[afmarcum]

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