chore(Buildpacks): Update revision of `libcnb.rs` to use (again)
chore(Buildpacks): Update revision of `libcnb.rs` to use (again)

stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila