chore: setup dependabot

[kelly-sovacool]

Changes

set up dependabot to bump python & gha versions

Issues

see CCBR/actions#194

PR Checklist

(Strikethrough any points that are not applicable.)

• This comment contains a description of changes with justifications, with any relevant issues linked.
• [ ] Write unit tests for any new features, bug fixes, or other code changes.
• [ ] Update docs if there are any API changes.
• [ ] Update CHANGELOG.md with a short description of any user-facing changes and reference the PR number. Guidelines: https://keepachangelog.com/en/1.1.0/

[codecov]

Codecov Report

❌ Patch coverage is 81.81818% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.77%. Comparing base (850edc6) to head (16d1bdc).

Files with missing lines	Patch %	Lines
src/ccbr_tools/GSEA/ncbr_huse.py	33.33%	2 Missing ⚠️
src/ccbr_tools/jobinfo.py	66.66%	2 Missing ⚠️
src/ccbr_tools/peek.py	60.00%	2 Missing ⚠️
src/ccbr_tools/pipeline/util.py	66.66%	2 Missing ⚠️
src/ccbr_tools/GSEA/deg2gs.py	87.50%	1 Missing ⚠️
src/ccbr_tools/GSEA/multitext2excel.py	85.71%	1 Missing ⚠️
src/ccbr_tools/homologfinder/hf.py	50.00%	1 Missing ⚠️
src/ccbr_tools/jobby.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #215      +/-   ##
==========================================
+ Coverage   73.60%   73.77%   +0.17%     
==========================================
  Files          28       28              
  Lines        1936     1926      -10     
==========================================
- Hits         1425     1421       -4     
+ Misses        511      505       -6     

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