deps(flutter): bump image from 4.7.2 to 4.8.0

[dependabot]

Bumps image from 4.7.2 to 4.8.0.

Changelog

Sourced from image's changelog.

4.8.0 - February 17, 2026

• Fix JPEG decoding issue with Adobe RGB color transformations.
• Feature: Histogram equalize and stretch

4.7.1 - December 18, 2025

• Fix issue decoding the last row of lossless webp images.

4.7.0 - December 17, 2025

• Major update to the WebP decoder to resolve errors decoding some files.
• Fixed issue where App1 marker would not be written when Exif data is injected into jpegs without exif block. Also fixed wrong IFD1 pointer.
• Improved robustness of EXIF injection and reading:
• Skips malformed EXIF sub-IFDs (e.g., bad GPSInfo pointers) during reading and injection, preventing RangeErrors and crashes.
• Allows injecting new EXIF (including GPS) data into files with broken EXIF blocks.

4.6.0 - December 11, 2025

• Fix issues with injectJpegExif corrupting jpeg files.
• Clean up validation errors causing Wasm builds to fail.
• Fix issue with Jpeg subsampling causing some images to fail to load.
• Fix rgbToHsv function
• Fix jpeg RGB-to-YUV conversion and background blending logic.
• Decode and encode ICC profile data for JPEG
• Added export for ICO encoder
• Fix error adding frame to an empty image
• Fix GIF decoder animation frame clear color
• GIF animation frame background transparency.
• Fixes for TIFF decoding

4.5.4 - March 23, 2025

• Fix for fillRect for images that that have alpha.
• Fix copyExpandCanvas for images with alpha.
• Improved performance for copyResize.
• Improved performance for gaussianBlur.

4.5.3 - February 22, 2025

• Improve fillPolygon to better handle concave polygons.
• Update conditional imports to be compatible with WASM.
• Fix TIFF 5-channel CMYK decoding
• Fix adjustColor color corruption
• Improve adjustColor saturation calculations
• Fix alpha color handling in JPEG encoder
• Change the default background color to white instead of black

4.5.2 - December 19, 2024

... (truncated)

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