android build: bump targetSdkVersion to 30

This is the new minimum the google play store requires.

note: the newer android command-line tools use a tiny bit different paths,
hence the `mv "${ANDROID_SDK_HOME}/cmdline-tools" "${ANDROID_SDK_HOME}/tools"` rename
see kivy/python-for-android#2540

contrib/android/Dockerfile

@@ -42,9 +42,9 @@ RUN curl --location --progress-bar \
 ENV ANDROID_SDK_HOME="${ANDROID_HOME}/android-sdk"
 
 # get the latest version from https://developer.android.com/studio/index.html
-ENV ANDROID_SDK_TOOLS_VERSION="6514223"
-ENV ANDROID_SDK_BUILD_TOOLS_VERSION="29.0.3"
-ENV ANDROID_SDK_HASH="ef319a5afdb41822cb1c88d93bc7c23b0af4fc670abca89ff0346ee6688da797"
+ENV ANDROID_SDK_TOOLS_VERSION="8092744"
+ENV ANDROID_SDK_BUILD_TOOLS_VERSION="30.0.3"
+ENV ANDROID_SDK_HASH="d71f75333d79c9c6ef5c39d3456c6c58c613de30e6a751ea0dbd433e8f8b9cbf"
 ENV ANDROID_SDK_TOOLS_ARCHIVE="commandlinetools-linux-${ANDROID_SDK_TOOLS_VERSION}_latest.zip"
 ENV ANDROID_SDK_TOOLS_DL_URL="https://dl.google.com/android/repository/${ANDROID_SDK_TOOLS_ARCHIVE}"
 ENV ANDROID_SDK_MANAGER="${ANDROID_SDK_HOME}/tools/bin/sdkmanager --sdk_root=${ANDROID_SDK_HOME}"
@@ -56,6 +56,7 @@ RUN curl --location --progress-bar \
     && echo "${ANDROID_SDK_HASH} ${ANDROID_SDK_TOOLS_ARCHIVE}" | sha256sum -c - \
     && mkdir --parents "${ANDROID_SDK_HOME}" \
     && unzip -q "${ANDROID_SDK_TOOLS_ARCHIVE}" -d "${ANDROID_SDK_HOME}" \
+    && mv "${ANDROID_SDK_HOME}/cmdline-tools" "${ANDROID_SDK_HOME}/tools" \
     && rm -rf "${ANDROID_SDK_TOOLS_ARCHIVE}"
 
 # update Android SDK, install Android API, Build Tools...
@@ -71,8 +72,7 @@ RUN apt -y update -qq \
 RUN yes | ${ANDROID_SDK_MANAGER} --licenses > /dev/null
 
 # download platforms, API, build tools
-RUN ${ANDROID_SDK_MANAGER} "platforms;android-24" > /dev/null && \
-    ${ANDROID_SDK_MANAGER} "platforms;android-29" > /dev/null && \
+RUN ${ANDROID_SDK_MANAGER} "platforms;android-30" > /dev/null && \
     ${ANDROID_SDK_MANAGER} "build-tools;${ANDROID_SDK_BUILD_TOOLS_VERSION}" > /dev/null && \
     ${ANDROID_SDK_MANAGER} "extras;android;m2repository" > /dev/null && \
     chmod +x "${ANDROID_SDK_HOME}/tools/bin/avdmanager"

contrib/android/buildozer_kivy.spec

@@ -75,7 +75,7 @@ android.permissions = INTERNET, CAMERA, WRITE_EXTERNAL_STORAGE
 
 # (int) Android API to use  (targetSdkVersion AND compileSdkVersion)
 # note: when changing, Dockerfile also needs to be changed to install corresponding build tools
-android.api = 29
+android.api = 30
 
 # (int) Minimum API required. You will need to set the android.ndk_api to be as low as this value.
 android.minapi = 21

contrib/android/buildozer_qml.spec

@@ -77,7 +77,7 @@ android.permissions = INTERNET, CAMERA, WRITE_EXTERNAL_STORAGE
 
 # (int) Android API to use  (targetSdkVersion AND compileSdkVersion)
 # note: when changing, Dockerfile also needs to be changed to install corresponding build tools
-android.api = 29
+android.api = 30
 
 # (int) Minimum API required. You will need to set the android.ndk_api to be as low as this value.
 android.minapi = 21