Upgrade ldapts 8.1.8 → 9.0.0

[n-lark]

Upgrade ldapts 8.1.8 → 9.0.0 (major)

Dependabot PR #7815. Runtime dependency: LDAP client for SSO/LDAP auth, used in forge/ee/lib/sso/index.js and forge/ee/routes/sso/index.js. Pulled out of the weekly Dependabot slot per the major-version process — needs an owner and verification, not a batch merge.

Compatibility pre-check

• ⚠️ Node engines: v9 requires >=22, but ldapts is a runtime dep and our package.json declares engines: >=20.10.0 — shipping it drops Node 20 for self-hosted installs. Raising the engines floor (dropping Node 20 support) is a policy decision, not just a dev/CI Node bump.
• ✅ peerDependencies: none.
• ✅ Removed Filter#escape instance method: no usage in our SSO code (only Client, InvalidCredentialsError imported).
• Current: package.json range ^8.1.8; lockfile resolves 8.1.8.

Breaking changes to review

• Node.js >= 22 now required.
• Deprecated Filter#escape instance method removed — use static Filter.escape() instead.

To do before merge

• Decide whether to raise the repo engines floor to >=22 (drops Node 20 support) — required before shipping.
• Verify LDAP login end-to-end (this is an auth path).
• Exercise SSO provider config + bind/search in forge/ee/lib/sso/index.js against the new client version.
• Read the 9.x changelog and reconcile with our usage.

Refs

• Branch: dependabot/npm_and_yarn/ldapts-9.0.0
• PR: build(deps): bump ldapts from 8.1.8 to 9.0.0 #7815
• Upstream: https://github.com/ldapts/ldapts/releases/tag/9.0.0