Keep GitHub Actions up to date with GitHub's Dependabot

[cclauss]

Fixes the warnings at the bottom right of:
https://github.com/callowayproject/bump-my-version/actions/runs/8333465405

• https://docs.github.com/en/code-security/dependabot/working-with-dependabot/keeping-your-actions-up-to-date-with-dependabot
• https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#package-ecosystem

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.44%. Comparing base (3b5f1de) to head (2e55fa1).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #159   +/-   ##
=======================================
  Coverage   93.44%   93.44%           
=======================================
  Files          24       24           
  Lines        1479     1479           
  Branches      295      295           
=======================================
  Hits         1382     1382           
  Misses         68       68           
  Partials       29       29           

Flag	Coverage Δ
python-3.10	93.44% <ø> (ø)
python-3.11	93.44% <ø> (ø)
python-3.8	93.44% <ø> (ø)
python-3.9	93.44% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[coordt]

Thanks for the contribution!

[cclauss]

Generated:

• Bump the github-actions group with 3 updates #162