Pass arg with revision to fuzzers Dockerfile

Would be cool to pass revision as arg for fuzzers Docker builds.

This will allow to specify specific revision and use such revision in results reporting.

Another thing, we could consider to pass branch as an argument also.

Xref: https://github.com/schemathesis/web-api-fuzzing-project/pull/26/files#diff-6997a959fdc57cfd39e5d7888407f3cef70377916496db3e16ea27e982d538a2R2

