Optimize conditions for request end with isset command

[KartaviK]

No description provided.

[codecov]

Codecov Report

Merging #14 into master will decrease coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master      #14      +/-   ##
============================================
- Coverage     99.69%   99.69%   -0.01%     
  Complexity      110      110              
============================================
  Files            22       22              
  Lines           325      324       -1     
============================================
- Hits            324      323       -1     
  Misses            1        1

Impacted Files	Coverage Δ	Complexity Δ
src/Receiver/Request/End.php	100% <100%> (ø)	10 <0> (ø)	⬇️

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