[parser/scenarios] defer yaml file closure

[LaurenceJJones]

Whilst debugging an issue I saw we kept the FD's of parsers and scenario open even after being fully loaded. Turns out we never explicitly defer the func so this adds it

[github-actions]

@LaurenceJJones: There are no 'kind' label on this PR. You need a 'kind' label to generate the release automatically.

• /kind feature
• /kind enhancement
• /kind fix
• /kind chore
• /kind dependencies

Details

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[github-actions]

@LaurenceJJones: There are no area labels on this PR. You can add as many areas as you see fit.

• /area agent
• /area local-api
• /area cscli
• /area security
• /area configuration

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[LaurenceJJones]

/kind enhancement
/area agent

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (f306d59) 55.08% compared to head (cdfe09f) 55.12%.

Files	Patch %	Lines
pkg/parser/stage.go	33.33%	2 Missing ⚠️
pkg/leakybucket/manager_load.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2689      +/-   ##
==========================================
+ Coverage   55.08%   55.12%   +0.04%     
==========================================
  Files         227      227              
  Lines       30360    30363       +3     
==========================================
+ Hits        16724    16739      +15     
+ Misses      12015    12006       -9     
+ Partials     1621     1618       -3     

Flag	Coverage Δ
bats	36.74% <40.00%> (+0.03%)	⬆️
unit-linux	49.72% <40.00%> (+0.05%)	⬆️
unit-windows	47.88% <40.00%> (-0.01%)	⬇️

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