Update dependency com.ibm.icu:icu4j to v77

[solrbot]

This PR contains the following updates:

Package	Type	Update	Change
com.ibm.icu:icu4j (source)	dependencies	major	74.2 -> 77.1

---

Release Notes

unicode-org/icu (com.ibm.icu:icu4j)

v77.1

Compare Source

v76.1

Compare Source

v75.1

Compare Source

---

Configuration

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

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ 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