Update dependency eu_central_bank to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
eu_central_bank (changelog)	1.7.0 → 2.0.0

---

Release Notes

RubyMoney/eu_central_bank (eu_central_bank)

v2.0.0

Compare Source

• Breaking change: Require Ruby >= 3.1
• Breaking change: Update Money dependency to 7.0. Make sure to read the upgrade
  guide.
• Update YAML loading from compatibility with recent Psych versions.
• Move Croatian Kuna (HRK) and Russian Ruble (RUB) to legacy currencies
• Add EuCentralBank::VERSION.

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• 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 was generated by Mend Renovate. View the repository job log.

[github-actions]

Code Coverage Report: Only Changed Files listed

Package	Base Coverage	New Coverage	Difference
Overall Coverage	🟢 53.13%	🟢 53.13%	⚪ 0%

Minimum allowed coverage is 0%, this run produced 53.13%