Roll back oss-fuzz-base

.clusterfuzzlite/Dockerfile

 # Base image with clang toolchain
-FROM gcr.io/oss-fuzz-base/base-builder:v1
+FROM gcr.io/oss-fuzz-base/base-builder:v1@sha256:f161edec0c10ad31ced9fcec3d4d0d1dd8a36a22de9ebef136a41dcfac34d1ba
 # install required packages to build your project
 RUN apt-get update && apt-get install -y python3-pip ninja-build
 RUN pip install -U --pre meson