gdb, profanity, weechat: Add note of dep on libpython

Reference: https://github.com/termux/termux-packages/issues/13297

%ci:no-build

packages/gdb/build.sh

@@ -2,6 +2,8 @@ TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/gdb/
 TERMUX_PKG_DESCRIPTION="The standard GNU Debugger that runs on many Unix-like systems and works for many programming languages"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_MAINTAINER="@termux"
+# This package depends on libpython${TERMUX_PYTHON_VERSION}.so.
+# Please revbump and rebuild when bumping TERMUX_PYTHON_VERSION.
 TERMUX_PKG_VERSION=12.1
 TERMUX_PKG_REVISION=1
 TERMUX_PKG_SRCURL=https://mirrors.kernel.org/gnu/gdb/gdb-${TERMUX_PKG_VERSION}.tar.xz

packages/profanity/build.sh

@@ -2,6 +2,8 @@ TERMUX_PKG_HOMEPAGE=https://profanity-im.github.io
 TERMUX_PKG_DESCRIPTION="Profanity is a console based XMPP client written in C using ncurses and libstrophe, inspired by Irssi"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_MAINTAINER="Oliver Schmidhauser @Neo-Oli"
+# This package depends on libpython${TERMUX_PYTHON_VERSION}.so.
+# Please revbump and rebuild when bumping TERMUX_PYTHON_VERSION.
 TERMUX_PKG_VERSION="0.13.1"
 TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL=https://github.com/profanity-im/profanity/releases/download/$TERMUX_PKG_VERSION/profanity-$TERMUX_PKG_VERSION.tar.gz

packages/weechat/build.sh

@@ -2,6 +2,8 @@ TERMUX_PKG_HOMEPAGE=https://weechat.org/
 TERMUX_PKG_DESCRIPTION="Fast, light and extensible IRC chat client"
 TERMUX_PKG_LICENSE="GPL-3.0"
 TERMUX_PKG_MAINTAINER="@termux"
+# `weechat-python-plugin` depends on libpython${TERMUX_PYTHON_VERSION}.so.
+# Please revbump and rebuild when bumping TERMUX_PYTHON_VERSION.
 TERMUX_PKG_VERSION="3.8"
 TERMUX_PKG_AUTO_UPDATE=true
 TERMUX_PKG_SRCURL=https://www.weechat.org/files/src/weechat-${TERMUX_PKG_VERSION}.tar.bz2