Remove env-inject plugin dependency

[uhafner]

Use Jenkins global configuration to set environment variables in tests.

[codecov]

Codecov Report

Merging #996 (c299101) into master (aa48b05) will increase coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #996      +/-   ##
============================================
+ Coverage     79.83%   79.87%   +0.03%     
- Complexity     1446     1447       +1     
============================================
  Files           238      238              
  Lines          5306     5306              
  Branches        416      416              
============================================
+ Hits           4236     4238       +2     
+ Misses          913      911       -2     
  Partials        157      157              

Impacted Files	Coverage Δ
...lugins/analysis/core/model/ReportScanningTool.java	80.23% <ø> (ø)
...ns/plugins/analysis/core/model/AnalysisResult.java	89.37% <0.00%> (+1.25%)	⬆️

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