feat(thorvg): update lottie example to utilize the full screen resolution

[suda-morris]

Thanks to the EDMA support in the SPI master driver, now we can transfer the PSRAM buffer without copying into the internal memory.

[Copilot]

Pull request overview

Updates the ThorVG Lottie ESP32-S3 example configuration to render at the panel’s full native resolution and to take advantage of SPI master EDMA improvements for PSRAM-backed buffers.

Changes:

• Adjust the example render/output resolution to 368×448 and lower the SPI pixel clock to 20 MHz.
• Update the SH8601 panel component dependency to ^2.0.0.
• Enable PSRAM XIP from PSRAM and increase the task watchdog timeout for the ESP32-S3 example config.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
thorvg/examples/thorvg_lottie/sdkconfig.defaults.esp32s3	Enables PSRAM XIP and adjusts WDT timeout for the S3 example configuration.
thorvg/examples/thorvg_lottie/main/thorvg_example_main.c	Updates render dimensions to match full-screen output and adjusts SPI clock.
thorvg/examples/thorvg_lottie/main/idf_component.yml	Bumps esp_lcd_sh8601 dependency to a newer major version.

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