Move androidingest to use the base-cipd image.

Change-Id: I03b2401245d04c5459d4fce6fe4efe201665abe3
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/264561
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
Auto-Submit: Joe Gregorio <jcgregorio@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
diff --git a/android_ingest/Makefile b/android_ingest/Makefile
index 1f22412..c08d823 100644
--- a/android_ingest/Makefile
+++ b/android_ingest/Makefile
@@ -13,4 +13,4 @@
 
 .PHONY: push
 push: release
-	pushk androidingest
\ No newline at end of file
+	pushk androidingest
diff --git a/android_ingest/images/androidingest/Dockerfile b/android_ingest/images/androidingest/Dockerfile
index 93e43bc..12e3b9d 100644
--- a/android_ingest/images/androidingest/Dockerfile
+++ b/android_ingest/images/androidingest/Dockerfile
@@ -1,10 +1,7 @@
-FROM gcr.io/skia-public/basealpine:3.8
+FROM gcr.io/skia-public/base-cipd:testing-slim
 
 USER root
 
-RUN apk update && \
-    apk add --no-cache git ca-certificates
-
 COPY . /
 
 USER skia