.github/workflows/cflite_pr.yml: use older runner version

[MaxDesiatov]

Downgraded os runner image to be compatible with Dockerfile used for CFLite fuzzer.

[MaxDesiatov]

Error response from daemon: client version 1.41 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version

@kateinoigakukun not sure what's up with that, some bug in the base image? I'm seeing the exact same message in other PRs

[kateinoigakukun]

it's not a builder image issue, but a container image used on the workflow job runner is too old.

$ docker run --rm -it --entrypoint bash gcr.io/oss-fuzz-base/clusterfuzzlite-run-fuzzers:v1
root@2f62bab267fe:/opt/oss-fuzz/infra# docker version
Client: Docker Engine - Community
 Version:           20.10.8
 API version:       1.41
 Go version:        go1.16.6
 Git commit:        3967b7d
 Built:             Fri Jul 30 19:54:27 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
root@2f62bab267fe:/opt/oss-fuzz/infra# cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.6 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.6 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

I think we need google/clusterfuzzlite#146 or down-versioning ubuntu-latest to ubuntu-22.04 might be a workaround?

[MaxDesiatov]

down-versioning ubuntu-latest to ubuntu-22.04 might be a workaround?

Seems like that worked, thanks!