chore: lower minimum Dart SDK to 3.10

[halildurmus]

Description

Lowers the minimum Dart SDK requirement to 3.10 to improve compatibility with other packages.

3.10 is the lowest supported version due to the use of hooks, which became stable in this release.

Related Issue

Bug: #1052

Type of Change

• 🚀 feat – New feature (non-breaking change that adds functionality)
• 🛠️ fix – Bug fix (non-breaking change that fixes an issue)
• ❌ ! – Breaking change (fix or feature that causes existing functionality to change)
• ⚡ perf – Performance improvement
• 🧹 refactor – Code refactor (no functionality change)
• 📝 docs – Documentation update
• 🎨 style – Code style changes (formatting, renaming, etc.)
• 🧪 test – Test update or addition
• 🔧 build – Build related changes
• ✅ ci – CI related changes
• 🗑️ chore – Chore (maintenance, non-production code change)
• ◀️ revert – Revert a previous commit

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.92%. Comparing base (e5e0410) to head (fef7355).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1053      +/-   ##
==========================================
+ Coverage   85.69%   87.92%   +2.23%     
==========================================
  Files          91      216     +125     
  Lines        5202    10529    +5327     
==========================================
+ Hits         4458     9258    +4800     
- Misses        744     1271     +527     

Flag	Coverage Δ
ffi_leak_tracker	83.96% <ø> (ø)
generator	86.08% <ø> (ø)
win32	80.07% <ø> (ø)
win32_clipboard	93.00% <ø> (ø)
win32_registry	88.53% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/winmd/lib/src/writer/metadata_writer.dart	92.11% <ø> (ø)
...ages/winmd/lib/src/writer/table/exported_type.dart	88.88% <ø> (ø)
packages/winmd/lib/src/writer/table/file.dart	85.71% <ø> (ø)
...ages/winmd/lib/src/writer/table/generic_param.dart	68.75% <ø> (ø)
packages/winmd/lib/src/writer/table/impl_map.dart	25.00% <ø> (ø)
...ackages/winmd/lib/src/writer/table/method_def.dart	90.00% <ø> (ø)
packages/winmd/lib/src/writer/table/type_def.dart	90.00% <ø> (ø)

... and 118 files with indirect coverage changes

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