Update deps in examples and add support for :dependencyUpdates gradle…

[bogdandrutu]

… task.

[codecov-io]

Codecov Report

Merging #1688 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             master   #1688      +/-   ##
===========================================
+ Coverage     82.09%   82.1%   +0.01%     
  Complexity     1902    1902              
===========================================
  Files           280     280              
  Lines          8914    8914              
  Branches        847     847              
===========================================
+ Hits           7318    7319       +1     
+ Misses         1316    1315       -1     
  Partials        280     280

Impacted Files	Coverage Δ	Complexity Δ
...census/implcore/trace/export/SpanExporterImpl.java	94.52% <0%> (-1.37%)	9% <0%> (ø)
...e/ocagent/OcAgentTraceServiceConfigRpcHandler.java	79.31% <0%> (+3.44%)	12% <0%> (ø)	⬇️

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