fix: migrate grafeas/v1 to grpc_service_config

[yoshi-automation]

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PiperOrigin-RevId: 317385359
Source-Link: googleapis/googleapis@79a17b8

[codecov]

Codecov Report

Merging #119 into master will increase coverage by 0.03%.
The diff coverage is 85.71%.

@@             Coverage Diff             @@
##             master    #119      +/-   ##
===========================================
+ Coverage      7.79%   7.83%   +0.03%     
  Complexity      388     388              
===========================================
  Files            85      85              
  Lines         28487   28499      +12     
  Branches       4911    4911              
===========================================
+ Hits           2220    2232      +12     
  Misses        25987   25987              
  Partials        280     280              

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/io/grafeas/v1/GrafeasSettings.java	12.72% <0.00%> (ø)	2.00 <0.00> (ø)
src/main/java/io/grafeas/v1/stub/GrafeasStub.java	5.55% <0.00%> (ø)	1.00 <0.00> (ø)
src/main/java/io/grafeas/v1/GrafeasClient.java	61.63% <50.00%> (ø)	59.00 <8.00> (ø)
...n/java/io/grafeas/v1/stub/GrafeasStubSettings.java	82.14% <96.61%> (+0.89%)	23.00 <2.00> (ø)
.../main/java/io/grafeas/v1/stub/GrpcGrafeasStub.java	96.60% <100.00%> (ø)	21.00 <2.00> (ø)

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