scripts: prepare for Bintray deprecation

Use termux.org as main repo host.

grimler.se / *.termux-mirror.ml for others.

scripts/build/termux_step_setup_variables.sh

@@ -30,12 +30,12 @@ termux_step_setup_variables() {
 	: "${TERMUX_PKG_MAINTAINER:="default"}"
 
 	TERMUX_REPO_URL=(
-		https://dl.bintray.com/termux/termux-packages-24
-		https://dl.bintray.com/grimler/game-packages-24
-		https://dl.bintray.com/grimler/science-packages-24
-		https://dl.bintray.com/grimler/termux-root-packages-24
-		https://dl.bintray.com/xeffyr/unstable-packages
-		https://dl.bintray.com/xeffyr/x11-packages
+		https://termux.org/packages
+		https://grimler.se/game-packages-24
+		https://grimler.se/science-packages-24
+		https://grimler.se/termux-root-packages-24
+		https://unstable.termux-mirror.ml
+		https://x11.termux-mirror.ml
 	)
 
 	TERMUX_REPO_DISTRIBUTION=(

scripts/check-built-packages.py

@@ -29,6 +29,6 @@ def check_manifest(arch, manifest):
             current_package[parts[0].strip()] = parts[1].strip()
 
 for arch in ['all', 'aarch64', 'arm', 'i686', 'x86_64']:
-    manifest_url = f'https://dl.bintray.com/termux/termux-packages-24/dists/stable/main/binary-{arch}/Packages'
+    manifest_url = f'https://termux.org/packages/dists/stable/main/binary-{arch}/Packages'
     with urllib.request.urlopen(manifest_url) as manifest:
         check_manifest(arch, manifest)

scripts/generate-bootstraps.sh

@@ -19,7 +19,7 @@ BOOTSTRAP_ANDROID10_COMPATIBLE=false
 TERMUX_ARCHITECTURES=("aarch64" "arm" "i686" "x86_64")
 
 # Can be changed by using '--repository' option.
-REPO_BASE_URL="https://dl.bintray.com/termux/termux-packages-24"
+REPO_BASE_URL="https://termux.org/packages"
 
 # A list of non-essential packages. By default it is empty, but can
 # be filled with option '--add'.