fix(deps): update dependency syncfusion_flutter_core to v33

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
syncfusion_flutter_core (source)	dependencies	major	28.2.7 → 33.2.3

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Release Notes

syncfusion/flutter-widgets (syncfusion_flutter_core)

v33.1.44

Enhancements

• Added explicit height and width support for Calendar resource views, providing better control over resource item size and resource panel width.
• Updated all Syncfusion Flutter widgets to support Flutter SDK v3.41.

Bug Fixes & Stability Improvements

• Fixed tap and drag issues in the Date Range Picker when used with layout offsets.
• Resolved interaction and tooltip alignment issues in Maps when the control is shifted from its default position.
• Fixed pointer offset issues in Signature Pad to ensure accurate stroke rendering and touch input.
• Corrected tooltip positioning issues in the Slider during drag interactions.
• Improved tooltip and thumb behavior in Range Slider and Range Selector to stay within track limits and display correct values.

v32.1.19

Whatsnew:
Enhancements:

• Added plot‑band customization for Cartesian charts; override drawRect and drawText to make custom shapes, patterns, dashed borders, and rotated labels.
• Improved Calendar to show extended all‑day events more clearly with appointmentBuilder.
• Updated Turkish empty state in Calendar from “Olay yok” to “Etkinlik yok”.

Bug Fixes & Stability Improvements:

• Updated all Flutter widgets to support Flutter SDK 3.35 and 3.38.
• Improved Signature Pad on Web; renderToContext2D now draws smoother, more accurate signatures.
• Fixed Calendar month‑view styles; leadingDatesTextStyle applies to previous‑month dates and trailingDatesTextStyle to next‑month dates.
• Fixed Gauge MarkerPointer image clipping.
• Improved Arabic localization for the Hijri Calendar for better accuracy and readability.

v31.1.17

• No changes.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
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The artifact failure details are included below:

File name: pubspec.lock

Command failed: flutter pub upgrade syncfusion_flutter_core
Because panache depends on syncfusion_flutter_sliders 28.2.7 which depends on syncfusion_flutter_core ^28.2.7, syncfusion_flutter_core ^28.2.7 is required.
So, because panache depends on syncfusion_flutter_core 33.2.3, version solving failed.


You can try the following suggestion to make the pubspec resolve:
* Try an upgrade of your constraints: flutter pub upgrade --major-versions
Failed to update packages.