fix(retry): retry field is retry not delay

[ctranxuan]

The W3C SSE specification for the retry is to send "retry" as field. Current implementation was returning "delay" instead.

[codecov-io]

Codecov Report

Merging #10 into master will not change coverage. The diff coverage is 0%.

@@            Coverage Diff            @@
##             master      #10   +/-   ##
=========================================
  Coverage     88.75%   88.75%           
  Complexity       63       63           
=========================================
  Files            10       10           
  Lines           169      169           
  Branches         19       19           
=========================================
  Hits            150      150           
  Misses           10       10           
  Partials          9        9

Impacted Files	Coverage Δ	Complexity Δ
...tx/ext/web/handler/sse/impl/SSEConnectionImpl.java	87.09% <0%> (ø)	28 <0> (ø)	:arrow_down:

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[aesteve]

Thanks a lot for the PR !

[ctranxuan]

You're welcome :)