Add kotlin-stdlib explicitly into dependencyManagement

[Cheshiriks]

What's done:

• Update dependency kotlin-stdlib
• Update function createTempFile()

[codecov]

Codecov Report

Merging #826 (a0e533f) into master (e1c175e) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #826   +/-   ##
=========================================
  Coverage     80.91%   80.91%           
  Complexity     2272     2272           
=========================================
  Files           100      100           
  Lines          5801     5801           
  Branches       1798     1798           
=========================================
  Hits           4694     4694           
  Misses          286      286           
  Partials        821      821           

Flag	Coverage Δ	Complexity Δ
unittests	80.91% <ø> (ø)	0.00 <ø> (ø)

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

Impacted Files	Coverage Δ	Complexity Δ
...g/cqfn/diktat/ruleset/rules/chapter3/EmptyBlock.kt	74.50% <ø> (ø)	24.00 <0.00> (ø)

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