ugrep@6.0.0: Add "ugrep-indexer.exe" into "bin"

Prerequisites

[X] I have written a descriptive issue title.
[X] I have searched all issues/PRs to ensure it has not already been reported or fixed.
[X] I have verified that I am using the latest version of Scoop and corresponding bucket.

Package Name

ugrep

Expected/Current Behaviour

ugrep-indexer.exe is not available at now.

Steps to Reproduce

(Just installing ugrep)

Possible Solution

In ugrep v6.0, it bundles a new utility calls ugrep-indexer, which indexes files to speed up searching.

Maybe just adding "ugrep-indexer.exe" into the "bin" field in manifest file should work.

Scoop and Buckets Version

PowerShell version: 5.1.19041.4291
Useragent: Shovel/1.0 (+https://shovel.ash258.com) PowerShell/5.1 (Windows NT 10.0.19045.0; Win64; x64;)
Current Scoop (Shovel) version:
52fe1646 (HEAD -> main, origin/master, origin/main, origin/HEAD, master) fix(Diagnostic): Better handling of migrated repos

'Base' bucket:
4157d3a (HEAD -> main, origin/main, origin/HEAD) tfsec: Update to version 1.28.6

'extras' bucket:
39fbf31d8 (HEAD -> master, origin/master, origin/HEAD) 7tt: Using extraction instead of portable install (#13245)

'main' bucket:
232b86b27 (HEAD -> master, origin/master, origin/HEAD) pocketbase: Add version 0.22.11 (#5749)

'versions' bucket:
4f75518a8 (HEAD -> master, origin/master, origin/HEAD) vscode-insiders: Update to version 1.90.0-insider+1715058362477

Scoop Config

(n/a)

PowerShell Version

(n/a)

Additional Softwares

No response

ScoopInstaller / Main

ugrep@6.0.0: Add "ugrep-indexer.exe" into "bin" #5800