[docker] use latest infer release

Summary: Bump version to 0.12.0. This should also fix Travis issues as 0.12.0 uses opam.lock for its opam dependencies, which points at non-broken package versions.

Reviewed By: cristianoc

Differential Revision: D5208632

fbshipit-source-id: 36d75ee

docker/Dockerfile

@@ -31,7 +31,7 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/*
 
 # Download the latest Infer release
-RUN INFER_VERSION=v0.11.0; \
+RUN INFER_VERSION=v0.12.0; \
     cd /opt && \
     curl -sL \
       https://github.com/facebook/infer/releases/download/${INFER_VERSION}/infer-linux64-${INFER_VERSION}.tar.xz | \