Upgrade Android NDK to r29

[IvanSavenko]

Dependencies are now built using latest Android NDK (r29).

Reasoning:

• New Google Play requirement - all app updates starting 1st November must be compiled with 16kb alignment. Can be solved without new NDK, but seems to be easiest approach https://developer.android.com/guide/practices/page-sizes#compile-16-kb-alignment
• Support for C++20 in current NDK is rather poor. New SDK seems to be shipped with clang-21, compared to clang-14 (and old libc++)

Changes:

• 32-bit arm now requires api level 21 (due to new SDK requirement)
• bumped boost requirement in conan to 1.74, as minimal version tested in CI
• removed no longer necessary patches for Qt <-> Android 4.4 compatibility

[kambala-decapitator]

• please remove android-19-jar.diff and android-19-java.diff files from conan_patches/qt/patches as well as respective entries from conan_patches/qt/conandata.yml
• will need to be tested by installing from Google Play, as the 16KB thing may be causing issues according to the docs

P.S. Local build with r28c used to work fine

[IvanSavenko]

• please remove android-19-jar.diff and android-19-java.diff files from conan_patches/qt/patches as well as respective entries from conan_patches/qt/conandata.yml

Done

• will need to be tested by installing from Google Play, as the 16KB thing may be causing issues according to the docs

Unlikely to cause issues for us. In any case, will do, but probably after opening PR in vcmi/vcmi

[kambala-decapitator]

In any case, will do, but probably after opening PR in vcmi/vcmi

yeah, once we have a build, please push it to the GP beta/testing track