Add get_config_block_regex to extract config section from config

[benedictmulongo]

No description provided.

[sonarcloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 30.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 64.36%. Comparing base (7a889df) to head (b21ff9b).
Report is 60 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/cnaas_nms/tools/jinja_filters.py	30.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #369      +/-   ##
===========================================
- Coverage    64.40%   64.36%   -0.05%     
===========================================
  Files           74       74              
  Lines         8024     8034      +10     
===========================================
+ Hits          5168     5171       +3     
- Misses        2856     2863       +7     

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