tracks erasure coding shreds indices explicitly (backport #21822)

[mergify]

This is an automatic backport of pull request #21822 done by Mergify.
Cherry-pick of 65d59f4 has failed:

On branch mergify/bp/v1.8/pr-21822
Your branch is up to date with 'origin/v1.8'.

You are currently cherry-picking commit 65d59f4ef.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   core/src/broadcast_stage.rs
	modified:   core/src/broadcast_stage/broadcast_utils.rs
	modified:   core/src/broadcast_stage/standard_broadcast_run.rs
	modified:   core/src/shred_fetch_stage.rs
	modified:   gossip/src/duplicate_shred.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   core/benches/retransmit_stage.rs
	both modified:   core/benches/shredder.rs
	both modified:   core/src/broadcast_stage/broadcast_duplicates_run.rs
	both modified:   core/src/broadcast_stage/broadcast_fake_shreds_run.rs
	both modified:   core/src/broadcast_stage/fail_entry_verification_broadcast_run.rs
	both modified:   core/src/window_service.rs
	both modified:   ledger/src/blockstore.rs
	both modified:   ledger/src/shred.rs
	both modified:   ledger/tests/shred.rs

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

---

Mergify commands and options

More conditions and actions can be found in the documentation.

You can also trigger Mergify actions by commenting on this pull request:

• @Mergifyio refresh will re-evaluate the rules
• @Mergifyio rebase will rebase this PR on its base branch
• @Mergifyio update will merge the base branch into this PR
• @Mergifyio backport <destination> will backport this PR on <destination> branch

Additionally, on Mergify dashboard you can:

• look at your merge queues
• generate the Mergify configuration with the config editor.

Finally, you can contact us on https://mergify.com

[solana-grimes]

😱 New commits were pushed while the automerge label was present.

[mergify]

automerge label removed due to a CI failure

[codecov]

Codecov Report

Merging #22969 (48e3405) into v1.8 (89ec164) will increase coverage by 0.0%.
The diff coverage is 76.5%.

@@           Coverage Diff           @@
##             v1.8   #22969   +/-   ##
=======================================
  Coverage    81.6%    81.6%           
=======================================
  Files         464      464           
  Lines      131942   132000   +58     
=======================================
+ Hits       107770   107840   +70     
+ Misses      24172    24160   -12     

[github-actions]

This PR has been automatically locked since there has not been any activity in past 14 days after it was merged.