Adding Safari 14

[jaydiablo]

Fixes #2376. Adding Safari 14 on macOS 10.14 and 10.15 (only OS that we've seen it on so far).

[codecov]

Codecov Report

Merging #2395 (fb2d1e8) into 6.0.x (b95dc4f) will increase coverage by 0.00%.
The diff coverage is 80.00%.

@@            Coverage Diff            @@
##              6.0.x    #2395   +/-   ##
=========================================
  Coverage     51.77%   51.77%           
  Complexity      899      899           
=========================================
  Files          1803     1804    +1     
  Lines         65636    65641    +5     
  Branches      29522    29524    +2     
=========================================
+ Hits          33982    33986    +4     
- Misses        31654    31655    +1     

Flag	Coverage Δ	Complexity Δ
full	46.62% <80.00%> (+<0.01%)	0.00 <0.00> (ø)
lite	2.14% <0.00%> (-0.01%)	0.00 <0.00> (ø)
standard	26.86% <80.00%> (+<0.01%)	0.00 <0.00> (ø)

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Impacted Files	Coverage Δ	Complexity Δ
...urces/user-agents/browsers/safari/safari-14-0.json	80.00% <80.00%> (ø)	0.00 <0.00> (?)

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