Add preflight checks to sendTransaction RPC method (bp #10338)

[mergify]

This is an automated backport of pull request #10338 done by Mergify

Cherry-pick of 9dbf3d5 has failed:

On branch mergify/bp/v1.1/pr-10338
Your branch is ahead of 'origin/v1.1' by 1 commit.
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You are currently cherry-picking commit 9dbf3d543.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:

	modified:   core/src/lib.rs
	new file:   core/src/rpc_health.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   core/src/rpc_service.rs

Cherry-pick of 9158479 has failed:

On branch mergify/bp/v1.1/pr-10338
Your branch is ahead of 'origin/v1.1' by 2 commits.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit 9158479dc.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:

	modified:   core/src/rpc_health.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   core/src/rpc.rs
	both modified:   core/src/rpc_service.rs

Cherry-pick of f1733ab has failed:

On branch mergify/bp/v1.1/pr-10338
Your branch is ahead of 'origin/v1.1' by 3 commits.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit f1733ab12.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:

	modified:   stake-monitor/src/lib.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   client/src/rpc_client.rs

Cherry-pick of 202512d has failed:

On branch mergify/bp/v1.1/pr-10338
Your branch is ahead of 'origin/v1.1' by 4 commits.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit 202512d46.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:

	modified:   cli/src/display.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   cli/src/cli.rs
	both modified:   cli/src/cluster_query.rs
	both modified:   client/src/rpc_client.rs

Cherry-pick of bd1f9d3 has failed:

On branch mergify/bp/v1.1/pr-10338
Your branch is ahead of 'origin/v1.1' by 5 commits.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit bd1f9d320.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)

	deleted by us:   tokens/src/thin_client.rs

no changes added to commit (use "git add" and/or "git commit -a")

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[codecov]

Codecov Report

Merging #10362 into v1.1 will increase coverage by 0.0%.
The diff coverage is 90.8%.

@@           Coverage Diff           @@
##            v1.1   #10362    +/-   ##
=======================================
  Coverage   80.7%    80.7%            
=======================================
  Files        288      289     +1     
  Lines      66714    66881   +167     
=======================================
+ Hits       53859    54018   +159     
- Misses     12855    12863     +8