update ci to alpine image

.drone.yml

@@ -4,7 +4,7 @@ name: default
 
 steps:
 - name: make
-  image: r.lerch.org/aws-zig-build:1
+  image: alpine/3.15.0
   environment:
     USERNAME:
       from_secret: docker_username
@@ -15,7 +15,6 @@ steps:
   commands:
   - wget https://ziglang.org/download/0.9.0/zig-linux-x86_64-0.9.0.tar.xz
   - tar x -C /usr/local -f zig-linux-x86_64-0.9.0.tar.xz
-  - rm /usr/local/bin/zig
   - ln -s /usr/local/zig-linux-x86_64-0.9.0/zig /usr/local/bin/zig
   - apk add git
   - (cd codegen && zig build test)

README.md

@@ -50,7 +50,6 @@ Only environment variable based credentials can be used at the moment.
 
 TODO List:
 
-* Move to new Docker image for CI/CD
 * Add STS key support
 * Implement credentials provider
 * Implement jitter/exponential backoff