bump Android cache key

Summary: Closes https://github.com/facebook/react-native/pull/17934

Differential Revision: D6956755

Pulled By: hramos

fbshipit-source-id: 518171156638effc279f17b38c379e029ed23ba0

.circleci/config.yml

@@ -24,13 +24,13 @@ aliases:
 
   - &restore-cache-android-packages
     keys:
-      - v3-android-sdkmanager-packages-{{ arch }}-{{ checksum "scripts/circle-ci-android-setup.sh" }}
+      - v1-android-sdkmanager-packages-{{ arch }}-api-26-alpha-{{ checksum "scripts/circle-ci-android-setup.sh" }}
       # Fallback in case checksum fails
-      - v3-android-sdkmanager-packages-{{ arch }}-
+      - v1-android-sdkmanager-packages-{{ arch }}-api-26-alpha-
   - &save-cache-android-packages
     paths:
       - /opt/android/sdk
-    key: v3-android-sdkmanager-packages-{{ arch }}-{{ checksum "scripts/circle-ci-android-setup.sh" }}
+    key: v1-android-sdkmanager-packages-{{ arch }}-api-26-alpha-{{ checksum "scripts/circle-ci-android-setup.sh" }}
 
   - &restore-cache-ndk
     keys: