Update dependency zx to v8.5.5

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change
zx (source)	devDependencies	patch	8.5.4 -> 8.5.5

---

Release Notes

google/zx (zx)

v8.5.5: — PVC Wizard

Compare Source

Minor feature polish.

• ProcessPromise and ProcessOutput lines() getters now accept a custom delimiter #​1220 #​1218

const cwd = tempdir()
const delimiter = '\0'

const p1 = $({
  cwd
})`touch foo bar baz; find ./ -type f -print0 -maxdepth 1`
(await p1.lines(delimiter)).sort() // ['./bar', './baz', './foo']
  
// or via options
const lines = []
const p2 = $({
  delimiter,
  cwd,
})`find ./ -type f -print0 -maxdepth 1`

for await (const line of p2) {
  lines.push(line)
}

lines.sort() // ['./bar', './baz', './foo']

• Handle .nothrow() option in ProcessProcess[AsyncIterator] #​1216 #​1217
• Updates yaml to v2.8.0 #​1221

---

Configuration

📅 Schedule: Branch creation - "* * * * 0" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.

[prodsecmachine]

🎉 Snyk checks have passed. No issues have been found so far.

✅ security/snyk check is complete. No issues have been found. (View Details)

✅ license/snyk check is complete. No issues have been found. (View Details)

[github-actions]

The backport to 8.x failed:

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

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.x 8.x
# Navigate to the new working tree
cd .worktrees/backport-8.x
# Create a new branch
git switch --create backport-2864-to-8.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 2b3716f87525dd645ca0e840796ac7cf60059fe6
# Push it to GitHub
git push --set-upstream origin backport-2864-to-8.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.x

Then, create a pull request where the base branch is 8.x and the compare/head branch is backport-2864-to-8.x.