ci: Add git tag / commit message with cargo release (solana-labs#7235)

#### Problem

The publish workflow is great, but it does some work by hand, namely
creating the git commit and tag. `cargo release` can do this, but we
currently don't use it because we aren't customizing it.

#### Summary of changes

Add configuration options to the top-level Cargo.toml and let cargo
release do everything for us.

.github/workflows/publish-rust.yml

@@ -205,10 +205,6 @@ jobs:
 
           ./ci/publish-rust.sh "${{ inputs.package_path }}" $LEVEL $OPTIONS
 
-      - name: Push Commit and Tag
-        if: github.event.inputs.dry_run != 'true'
-        run: git push origin --follow-tags
-
       - name: Generate a changelog
         if: github.event.inputs.create_release == 'true'
         uses: orhun/git-cliff-action@v3

Cargo.toml

@@ -85,3 +85,8 @@ exclude = [
 ]
 
 resolver = "2"
+
+[workspace.metadata.release]
+pre-release-commit-message = "Publish {{crate_name}} v{{version}}"
+tag-message = "Publish {{crate_name}} v{{version}}"
+consolidate-commits = false

ci/publish-rust.sh

@@ -22,12 +22,14 @@ cd "${PACKAGE_PATH}"
 
 # Get the old version, used with git-cliff
 old_version=$(readCargoVariable version "Cargo.toml")
+package_name=$(readCargoVariable name "Cargo.toml")
+tag_name="$(echo $package_name | sed 's/spl-//')"
 
-# Publish the new version.
+# Publish the new version, commit the repo change, tag it, and push it all.
 if [[ -n ${DRY_RUN} ]]; then
   cargo release ${LEVEL}
 else
-  cargo release ${LEVEL} --no-push --no-tag --no-confirm --execute
+  cargo release ${LEVEL} --tag-name "${tag_name}-v{{version}}" --no-confirm --execute
 fi
 
 # Stop here if this is a dry run.
@@ -37,8 +39,6 @@ fi
 
 # Get the new version.
 new_version=$(readCargoVariable version "Cargo.toml")
-package_name=$(readCargoVariable name "Cargo.toml")
-tag_name="$(echo $package_name | sed 's/spl-//')"
 new_git_tag="${tag_name}-v${new_version}"
 old_git_tag="${tag_name}-v${old_version}"
 release_title="SPL ${tag_name} - v${new_version}"
@@ -49,12 +49,3 @@ if [[ -n $CI ]]; then
   echo "old_git_tag=${old_git_tag}" >> $GITHUB_OUTPUT
   echo "release_title=${release_title}" >> $GITHUB_OUTPUT
 fi
-
-# Soft reset the last commit so we can create our own commit and tag.
-git reset --soft HEAD~1
-
-# Commit the new version.
-git commit -am "Publish ${tag_name} v${new_version}"
-
-# Tag the new version.
-git tag -a ${new_git_tag} -m "${tag_name} v${new_version}"