[Backport] [1.3] Use BuildParams.isCi() instead of checking env var (#5368)

[reta]

Backport of #5368 to 1.3

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/7321/
• CommitID: f78f90f

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/7322/
• CommitID: aad43db

[codecov-commenter]

Codecov Report

Merging #5375 (aad43db) into 1.3 (f3e2d7f) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                1.3    #5375      +/-   ##
============================================
- Coverage     77.88%   77.85%   -0.03%     
+ Complexity    63452    63403      -49     
============================================
  Files          4454     4454              
  Lines        274943   274943              
  Branches      41166    41166              
============================================
- Hits         214132   214058      -74     
- Misses        43898    43964      +66     
- Partials      16913    16921       +8     

Impacted Files	Coverage Δ
...regations/pipeline/SimulatedAnealingMinimizer.java	0.00% <0.00%> (-93.11%)	⬇️
...ava/org/opensearch/action/NoSuchNodeException.java	0.00% <0.00%> (-50.00%)	⬇️
...ch/transport/ReceiveTimeoutTransportException.java	50.00% <0.00%> (-50.00%)	⬇️
.../opensearch/client/indices/CloseIndexResponse.java	55.55% <0.00%> (-34.57%)	⬇️
...ion/admin/cluster/node/info/PluginsAndModules.java	53.12% <0.00%> (-34.38%)	⬇️
...opensearch/transport/TransportResponseHandler.java	75.00% <0.00%> (-25.00%)	⬇️
...min/cluster/tasks/PendingClusterTasksResponse.java	35.00% <0.00%> (-25.00%)	⬇️
...g/opensearch/geometry/utils/StandardValidator.java	30.30% <0.00%> (-24.25%)	⬇️
...rc/main/java/org/opensearch/monitor/os/OsInfo.java	64.70% <0.00%> (-19.61%)	⬇️
...n/java/org/opensearch/transport/TransportInfo.java	74.13% <0.00%> (-18.97%)	⬇️
... and 431 more

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