Add integrity token to GQL requests

[Rakambda]

Pull Request Etiquette

Checklist

• Tests have been added in relevant areas
• Corresponding changes made to the documentation (README.adoc)

Type of change

Internal change

Description

[codecov]

Codecov Report

Merging #286 (2d7f609) into develop (b87387e) will increase coverage by 0.12%.
The diff coverage is 97.77%.

@@              Coverage Diff              @@
##             develop     #286      +/-   ##
=============================================
+ Coverage      88.96%   89.09%   +0.12%     
- Complexity       893      904      +11     
=============================================
  Files            173      175       +2     
  Lines           2656     2687      +31     
  Branches         186      189       +3     
=============================================
+ Hits            2363     2394      +31     
  Misses           244      244              
  Partials          49       49              

Flag	Coverage Δ
unittests-miner	89.65% <97.77%> (+0.12%)	⬆️
unittests-viewer	58.33% <ø> (ø)

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Impacted Files	Coverage Δ
...ana/channelpointsminer/miner/MinerApplication.java	0.00% <0.00%> (ø)
...inana/channelpointsminer/miner/api/gql/GQLApi.java	97.18% <100.00%> (+1.18%)	⬆️
.../miner/api/passport/exceptions/IntegrityError.java	100.00% <100.00%> (ø)
...r/util/json/MillisecondsTimestampDeserializer.java	100.00% <100.00%> (ø)

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