[Backport] [2.x] Bump BouncyCastle to 1.76 (#10219)

[willyborankin]

Backport f6646fb from #10219

[github-actions]

Compatibility status:

Checks if related components are compatible with change 033e866

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/neural-search.git]

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/26315/
• CommitID: 033e866
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.repositories.azure.AzureBlobContainerRetriesTests.testReadNonexistentBlobThrowsNoSuchFileException

• URL: https://build.ci.opensearch.org/job/gradle-check/26326/
• CommitID: 033e866
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Merging #10232 (033e866) into 2.x (c1c1cee) will decrease coverage by 0.10%.
Report is 4 commits behind head on 2.x.
The diff coverage is 81.25%.

@@             Coverage Diff              @@
##                2.x   #10232      +/-   ##
============================================
- Coverage     70.88%   70.79%   -0.10%     
+ Complexity    58335    58227     -108     
============================================
  Files          4812     4812              
  Lines        275413   275406       -7     
  Branches      40489    40489              
============================================
- Hits         195222   194964     -258     
- Misses        63525    63737     +212     
- Partials      16666    16705      +39     

Files	Coverage Δ
.../org/opensearch/ingest/common/RemoveProcessor.java	96.96% <100.00%> (+7.31%)	⬆️
...dex/translog/transfer/TranslogTransferManager.java	73.01% <ø> (-7.62%)	⬇️
...g/transfer/TranslogCheckpointTransferSnapshot.java	78.20% <0.00%> (-8.81%)	⬇️
...rg/opensearch/index/translog/RemoteFsTranslog.java	70.93% <75.00%> (-2.43%)	⬇️

... and 458 files with indirect coverage changes