Bump prost, prost-types, and tonic (backport #18537)

[mergify]

This is an automatic backport of pull request #18537 done by Mergify.
Cherry-pick of 761de8b has failed:

On branch mergify/bp/v1.6/pr-18537
Your branch is up to date with 'origin/v1.6'.

You are currently cherry-picking commit 761de8b1a.
  (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:   ci/do-audit.sh
	modified:   ledger/Cargo.toml
	modified:   storage-bigtable/build-proto/Cargo.lock
	modified:   storage-bigtable/build-proto/Cargo.toml
	modified:   storage-bigtable/proto/google.bigtable.v2.rs
	modified:   storage-bigtable/src/bigtable.rs
	modified:   storage-proto/build-proto/Cargo.lock
	modified:   storage-proto/build-proto/Cargo.toml
	modified:   storage-proto/src/transaction_by_addr.proto

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   Cargo.lock
	both modified:   storage-bigtable/Cargo.toml
	both modified:   storage-proto/Cargo.toml

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

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[codecov]

Codecov Report

Merging #18557 (1edd073) into v1.6 (a9d6b90) will decrease coverage by 0.0%.
The diff coverage is 0.0%.

@@            Coverage Diff            @@
##             v1.6   #18557     +/-   ##
=========================================
- Coverage    82.3%    82.3%   -0.1%     
=========================================
  Files         423      423             
  Lines      117721   117718      -3     
=========================================
- Hits        96906    96901      -5     
- Misses      20815    20817      +2