[Backport 1.x] remove hardcoded URL

[opensearch-trigger-bot]

Backport b276aa3 from #338

[codecov-commenter]

Codecov Report

Merging #340 (b276aa3) into 1.x (a1a14ba) will increase coverage by 0.57%.
The diff coverage is 81.83%.

❗ Current head b276aa3 differs from pull request most recent head a843761. Consider uploading reports for the commit a843761 to get more accurate results

@@             Coverage Diff              @@
##                1.x     #340      +/-   ##
============================================
+ Coverage     83.41%   83.99%   +0.57%     
- Complexity      889      900      +11     
============================================
  Files           127      130       +3     
  Lines          3841     3854      +13     
  Branches        361      353       -8     
============================================
+ Hits           3204     3237      +33     
+ Misses          475      457      -18     
+ Partials        162      160       -2     

Impacted Files	Coverage Δ
...n/java/org/opensearch/knn/common/KNNConstants.java	92.30% <ø> (ø)
.../main/java/org/opensearch/knn/index/KNNScorer.java	69.23% <0.00%> (+4.94%)	⬆️
.../opensearch/knn/index/KNNVectorIndexFieldData.java	100.00% <ø> (ø)
...opensearch/knn/index/KNNVectorScriptDocValues.java	90.47% <ø> (ø)
...n/index/codec/KNN80Codec/KNN80BinaryDocValues.java	100.00% <ø> (+28.57%)	⬆️
...nsearch/knn/index/codec/KNN80Codec/KNN80Codec.java	30.00% <0.00%> (ø)
...n/index/codec/KNN80Codec/KNN80DocValuesReader.java	75.00% <ø> (ø)
...earch/knn/index/codec/util/BinaryDocValuesSub.java	71.42% <ø> (ø)
...rch/knn/index/memory/NativeMemoryEntryContext.java	100.00% <ø> (ø)
...main/java/org/opensearch/knn/jni/FaissService.java	85.71% <ø> (ø)
... and 108 more

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