Update dependency intl to ^0.20.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
intl (source)	dev_dependencies	minor	^0.17.0 -> ^0.20.0

---

Release Notes

dart-lang/i18n (intl)

v0.20.0

Compare Source

• Fix caching of messages in CompositeMessageLookup.
• Type numberFormatSymbols as a Map<String, NumberSymbols>.
• Type dateTimeSymbolMap as a Map<String, DateSymbols>.
• Add example for pub.dev.
• Fix issues with AM/PM markers.
• Update to CLDR v44.1.
• Require Dart ^3.3
• Require package:web ^0.5.0.
• Support compiling to WASM.
• Update to and account for package:lints ^4.0.0.
• rtl Detection fix in bidi.dart for Kordi Sorani "ckb".
• Update to CLDR v45.

v0.19.0

Compare Source

• Update to CLDR v44.
• Update to CLDR v43.
• Add tryParse to NumberFormat.
• Add tryParse tryParseStrict tryParseLoose tryParseUtc to DateFormat.
• Add fallback for deprecated locales, such as he <-> iw.
• Switch QAR currency name to Riyal.
• Add license headers to some files.
• Update CVE currency symbol.
• Add EEEEE skeleton for DateFormat, closing #​176.
• Switch to 3.0.0 SDK.
• Fix issue #​483 about date parsing with a yy skeleton.
• Extract NumberParserBase abstract class

v0.18.1

• Update ruble sign and update corresponding test.
• Remove unimplemented timezone functionality.
• Update git path in pubspec.
• Update to CLDR v42.

v0.18.0

• Add support for minimumSignificantDigits / maximumSignificantDigits in
  NumberFormat.
• Add support for plural in NumberFormat.compact() ('2 milliards').
• Fix negative number formatting / parsing in NumberFormat.compact().
• Add optional parameter to NumberFormat.compact() to explicitly add sign
  even for positive values.
• Add decimalPatternDigits to NumberFormat which supports specifying the
  number of decimal digits in a decimal pattern.
• Update to cldr 40.
• Migrate to package:lints/recommended.yaml.
• Remove some instances of dynamic types from the API.
• Fix a bug caused by a typo in the plural rules calculation.
• Unify IntlStream and StringIterator into StringStack.
• Update to CLDR v41.
• Add new locales: as, bm, en_NZ, fur, mg, nyn.
• Remove unimplemented formatDuration and formatDurationFrom.
• Make shortLocale and canonicalizedLocale implementations smarter.

---

Configuration

📅 Schedule: 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.