(backport v3.7) modules: mbedtls: update to 3.6.3

[tomi-font]

Backport the Mbed TLS 3.6.3 update to the v3.7 branch.

Fixes #88229

[zephyrbot]

The following west manifest projects have been modified in this Pull Request:

Name	Old Revision	New Revision	Diff
mbedtls	zephyrproject-rtos/mbedtls@a78176c	zephyrproject-rtos/mbedtls@5f88993 (zephyr)	zephyrproject-rtos/[email protected]

Note: This message is automatically posted and updated by the Manifest GitHub Action.

[aescolar]

Thanks @tomi-font . Note we need a GH issue for this. Would you be so kind as to describe "why" we want this update for the LTS. Thanks in advance :)

[tomi-font]

Thanks @tomi-font . Note we need a GH issue for this. Would you be so kind as to describe "why" we want this update for the LTS. Thanks in advance :)

Mbed TLS 3.6 is LTS, Zephyr 3.7 is LTS, Zephyr 3.7.1 had Mbed TLS 3.6.2 so Zephyr 3.7.2 should have Mbed TLS 3.6.3 (fix version + 1) :)
plus Mbed TLS 3.6.3 fixes two CVEs, see https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.6.3

[aescolar]

@tomi-font note we still need a github issue with the motivation for this update (like you did in #87946 (comment)) , linked from the first PR comment

[tomi-font]

ping, anyone in here please review

[tomi-font]

Had to make explicit links for the CVEs as the cve text role doesn't exist in 3.7.