Move `dependabot.yml` to the correct directory

[jbampton]

The dependabot.yml configuration file should be placed in the .github directory at the root of your repository.

Dependabot will not work if the file is placed in any other directory

Minor file extension rename for standardization

https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuring-dependabot-version-updates

Description

This PR...

Types of changes

• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] New feature (non-breaking change which adds functionality)
• [X] Bug fix (non-breaking change which fixes an issue)
• [ ] Enhancement (improves an existing feature and functionality)
• [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
• [ ] Build/CI
• [ ] Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• [ ] Major
• [X] Minor

Bug Severity

• [ ] BLOCKER
• [ ] Critical
• [ ] Major
• [ ] Minor
• [ ] Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 17.46%. Comparing base (f417c6b) to head (e88d5ee). :warning: Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main   #12243   +/-   ##
=========================================
  Coverage     17.46%   17.46%           
  Complexity    15516    15516           
=========================================
  Files          5913     5913           
  Lines        529385   529385           
  Branches      64679    64679           
=========================================
+ Hits          92448    92450    +2     
+ Misses       426518   426517    -1     
+ Partials      10419    10418    -1     

Flag	Coverage Δ
uitests	3.58% <ø> (ø)
unittests	18.52% <ø> (+<0.01%)	:arrow_up:

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