Bugfix: Install s3stalker-daemon script

[adybbroe]

The s3stalker_daemon.py is not installed. This PR fixes this.

[codecov[bot]]

Codecov Report

Merging #134 (21b7869) into main (19bc0db) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #134   +/-   ##
=======================================
  Coverage   91.32%   91.32%           
=======================================
  Files          27       27           
  Lines        4044     4044           
=======================================
  Hits         3693     3693           
  Misses        351      351           

Flag	Coverage Δ
unittests	91.32% <ø> (ø)

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

Impacted Files	Coverage Δ
pytroll_collectors/s3stalker_daemon_runner.py	100.00% <ø> (ø)

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[coveralls]

Pull Request Test Coverage Report for Build 4691570352

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 0.0%

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Totals
Change from base Build 4530552534:	0.0%
Covered Lines:	0
Relevant Lines:	0

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💛 - Coveralls