Update Android build tools to 36.1.0 and remove old versions (#2408)

Fixes https://github.com/bazelbuild/rules_android/issues/423

buildkite/android.sh

diff --git a/buildkite/android.sh b/buildkite/android.sh
index 7cfb0b2..312ddb9 100755
--- a/buildkite/android.sh
+++ b/buildkite/android.sh
@@ -20,8 +20,7 @@
 yes | tools/bin/sdkmanager --licenses > /dev/null
 tools/bin/sdkmanager --update
 tools/bin/sdkmanager \
-    "build-tools;28.0.2" \
-    "build-tools;30.0.3" \
+    "build-tools;36.1.0" \
     "emulator" \
     "extras;android;m2repository" \
     "platform-tools" \

buildkite/setup-docker.sh

diff --git a/buildkite/setup-docker.sh b/buildkite/setup-docker.sh
index 83fe441..6a0ee1b 100755
--- a/buildkite/setup-docker.sh
+++ b/buildkite/setup-docker.sh
@@ -187,8 +187,7 @@
   yes | latest/bin/sdkmanager --licenses > /dev/null || true
   latest/bin/sdkmanager --update
   latest/bin/sdkmanager \
-      "build-tools;28.0.2" \
-      "build-tools;30.0.3" \
+      "build-tools;36.1.0" \
       "extras;android;m2repository" \
       "platform-tools" \
       "platforms;android-24" \

buildkite/setup-windows.ps1

diff --git a/buildkite/setup-windows.ps1 b/buildkite/setup-windows.ps1
index 1e7c033..2675fe4 100755
--- a/buildkite/setup-windows.ps1
+++ b/buildkite/setup-windows.ps1
@@ -262,8 +262,7 @@
 

 ## Install all required Android SDK components.

 & "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "platform-tools"

-& "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "build-tools;28.0.2"

-& "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "build-tools;30.0.3"

+& "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "build-tools;36.1.0"

 & "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "platforms;android-24"

 & "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "platforms;android-28"

 & "${android_sdk_tools_root}\latest\bin\sdkmanager.bat" "platforms;android-29"

macos/mac-android.sh

diff --git a/macos/mac-android.sh b/macos/mac-android.sh
index 47dca30..b86421f 100644
--- a/macos/mac-android.sh
+++ b/macos/mac-android.sh
@@ -26,8 +26,7 @@
 yes | latest/bin/sdkmanager --licenses > /dev/null || true
 latest/bin/sdkmanager --update
 latest/bin/sdkmanager \
-    "build-tools;28.0.2" \
-    "build-tools;30.0.3" \
+    "build-tools;36.1.0" \
     "extras;android;m2repository" \
     "platform-tools" \
     "platforms;android-24" \