ci: pin shfmt to v3.2.0
ci: pin shfmt to v3.2.0

We had to use shfmt from git master/HEAD in commit 069fddfa1 as at the
time there was no released/tagged version that supports bats syntax.

Now there is (https://github.com/mvdan/sh/releases/tag/v3.2.0),
so let's pin it to avoid sudden regressions caused by changes in master
branch.

Signed-off-by: Kir Kolyshkin <3a017b8ddb3f9cf3e4a59978b004111bdeb97f08@gmail.com>

estesp/runc,dqminh/runc,dqminh/runc,estesp/runc,dqminh/runc,kolyshkin/runc,rhatdan/runc,opencontainers/runc,kolyshkin/runc,xiaochenshen/runc,estesp/runc,dqminh/runc,rhatdan/runc,opencontainers/runc,rhatdan/runc,opencontainers/runc,xiaochenshen/runc,xiaochenshen/runc,rhatdan/runc,kolyshkin/runc,kolyshkin/runc,opencontainers/runc