don't ask user to reload systemd service when running in docker

[mmetc]

No description provided.

[github-actions]

@mmetc: 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 appsec
• /area security
• /area configuration

Details

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[codecov]

Codecov Report

Attention: Patch coverage is 75.86207% with 7 lines in your changes missing coverage. Please review.

Project coverage is 59.33%. Comparing base (172d6c6) to head (f7779c2).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
cmd/crowdsec-cli/reload/reload.go	28.57%	4 Missing and 1 partial ⚠️
cmd/crowdsec-cli/clihub/hub.go	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3434      +/-   ##
==========================================
- Coverage   59.34%   59.33%   -0.02%     
==========================================
  Files         361      362       +1     
  Lines       38953    38964      +11     
==========================================
+ Hits        23117    23119       +2     
- Misses      13911    13918       +7     
- Partials     1925     1927       +2     

Flag	Coverage Δ
bats	41.60% <75.86%> (-0.01%)	⬇️
unit-linux	33.63% <0.00%> (-0.02%)	⬇️
unit-windows	28.39% <0.00%> (-0.01%)	⬇️

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[mmetc]

With the last change, restart message and user confirmation prompts are only displayed

• if run in a shell (docker exec... then cscli)
• if the container is started with run -ti

Is this ok @LaurenceJJones ?