fix builds in deployment/ci/Dockerfile

we have been running into some problems with the deployment/ci/Dockerfile definitions:

• it is tried to copy yarn.lock, even though not present -> build fails
• indy-sdk build fails, e.g.

error[E0308]: mismatched types --> /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/num-bigint-0.3.1/src/biguint.rs:208:19 | 208 | .div_ceil(&big_digit::BITS.into()) | -------- ^^^^^^^^^^^^^^^^^^^^^^^ expected u64, found &_``

probably due to too recent Rust version. We suspect that indy-sdk is supposed to built using 1.58.0 (https://github.com/hyperledger/indy-sdk/blob/main/Jenkinsfile.ci) so have made an adjustment accordingly.