Bump image from 3.3.0 to 4.0.15 in /web/samples_index

[dependabot]

Bumps image from 3.3.0 to 4.0.15.

Changelog

Sourced from image's changelog.

4.0.15 - February 11, 2023

• Fix JPEG encoder for non uint8 format images.

4.0.14 - February 11, 2023

• Use Image.backgroundColor for copyRotate, copyCropCircle, and other functions that reveal background pixels.

4.0.13 - January 30, 2023

• Fix transform functions for palette images.

4.0.12 - January 23, 2023

• Fix EXIF parsing little endian data
• Fix bounds errors with filter functions and palette images.
• Fix BMP encoding palette rgba images by converting them to 32-bit rgba.

4.0.11 - January 22, 2023

• Add decodeJpgExif and injectJpgExif functions to process JPG exif data without needing to decode the image.
• Fix EXIF parse exception from empty strings.
• Fix EXIF string data not writing out null character.

4.0.10 - January 1, 2023

• Fix last-minute typo from previous release.

4.0.9 - January 1, 2023

• Fix offset error with BMP encoder for images with < 8 bits per pixel
• Improve quality of converting 3-channel image to 1-channel.

4.0.8 - January 08, 2023

• Fix ChannelOrder.bgra.
• Add Image.hasAlpha getter property that will be true if the Image has an alpha channel.

4.0.7 - January 05, 2023

• Fix Image.getRangeIterator skipping last line.

4.0.6 - January 04, 2023

• Image.remapChannels(ChannelOrder order) to remap the order of channels from rgb to bgr, etc.
• Image.getBytes({ChannelOrder? order}) will return the image data, optionally reordering the channels.
• Image.fromBytes can take an optional ChannelOrder? order named arg to specify the channel order of the input data.

4.0.5 - January 01, 2023

... (truncated)

Commits

• ab222e0 Update to 4.0.15
• b58e165 Make sure jpeg encoder converts image pixel to uint8 if it's not already
• c4a6af9 Update to 4.0.14
• 84b620e Use backgroundColor to set the clear color for copyRotate and copyCropCircle
• 99a7d43 4.0.13
• e8a7c0c Improve handling of palette images in transform functions
• e5cafa7 re-add strict analysis rules
• a9fa1d8 update to 4.0.12
• 6b589f1 BMP: convert palette rgba images to 32-bit since bmp does not support palette...
• 647a755 bounds check palette access
• Additional commits viewable in compare view

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