1537 try to move dropper file first

[ilija-lazoroski]

What does this PR do?

Fixes #1537 always try to move dropper first.

Add any further explanations here.

PR Checklist

• Have you added an explanation of what your changes do and why you'd like to include them?
• Is the TravisCI build passing?
• Was the CHANGELOG.md updated to reflect the changes?
• Was the documentation framework updated to reflect the changes?

Testing Checklist

• Added relevant unit tests?
• Have you successfully tested your changes locally? Elaborate:

  Tested by {Running the Monkey locally with relevant config/running Island/...}

• If applicable, add screenshots or log transcripts of the feature working

Explain Changes

[codecov]

Codecov Report

Merging #1588 (de0fff9) into develop (5c66850) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##           develop    #1588      +/-   ##
===========================================
- Coverage    44.75%   44.75%   -0.01%     
===========================================
  Files          474      474              
  Lines        13859    13858       -1     
===========================================
- Hits          6203     6202       -1     
  Misses        7656     7656              

Impacted Files	Coverage Δ
monkey/infection_monkey/config.py	62.01% <ø> (-0.30%)	⬇️
monkey/infection_monkey/dropper.py	0.00% <0.00%> (ø)
...onkey_island/cc/services/config_schema/internal.py	100.00% <ø> (ø)

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[shreyamalviya]

Why have brackets around this?