[Backport 2.x] Upgrade org.bouncycastle:bcprov-jdk18on to 1.78.1

[opensearch-trigger-bot]

Backport 2506468 from #3004.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.38%. Comparing base (2bf7a90) to head (b9a941d).
Report is 13 commits behind head on 2.x.

Additional details and impacted files

@@            Coverage Diff            @@
##                2.x    #3020   +/-   ##
=========================================
  Coverage     94.38%   94.38%           
  Complexity     5313     5313           
=========================================
  Files           521      521           
  Lines         15144    15144           
  Branches       1005     1005           
=========================================
  Hits          14294    14294           
  Misses          804      804           
  Partials         46       46           

Flag	Coverage Δ
sql-engine	94.38% <ø> (ø)

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[opensearch-trigger-bot]

The backport to 2.17 failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/sql/backport-2.17 2.17
# Navigate to the new working tree
pushd ../.worktrees/sql/backport-2.17
# Create a new branch
git switch --create backport/backport-3020-to-2.17
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 a20f655ef3d03405e8427aacef2d5dfebcab48c3
# Push it to GitHub
git push --set-upstream origin backport/backport-3020-to-2.17
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/sql/backport-2.17

Then, create a pull request where the base branch is 2.17 and the compare/head branch is backport/backport-3020-to-2.17.