fix(main/python): add missing tk build dependency in case package n…

…eeds to be built without `python-tkinter.subpackage`

```
ERROR: Python module library _tkinter not built
```

packages/python/build.sh

@@ -5,11 +5,12 @@ TERMUX_PKG_LICENSE="custom"
 TERMUX_PKG_LICENSE_FILE="LICENSE"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=3.11.9
-TERMUX_PKG_REVISION=2
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=https://www.python.org/ftp/python/${TERMUX_PKG_VERSION}/Python-${TERMUX_PKG_VERSION}.tar.xz
 TERMUX_PKG_SHA256=9b1e896523fc510691126c864406d9360a3d1e986acbda59cda57b5abda45b87
 TERMUX_PKG_AUTO_UPDATE=false
 TERMUX_PKG_DEPENDS="gdbm, libandroid-posix-semaphore, libandroid-support, libbz2, libcrypt, libexpat, libffi, liblzma, libsqlite, ncurses, ncurses-ui-libs, openssl, readline, zlib"
+TERMUX_PKG_BUILD_DEPENDS="tk"
 TERMUX_PKG_RECOMMENDS="python-ensurepip-wheels, python-pip"
 TERMUX_PKG_SUGGESTS="python-tkinter"
 TERMUX_PKG_BREAKS="python2 (<= 2.7.15), python-dev"