Update crates & fix crate vulnerability

[dfunkt]

• fixes GHSA-q445-7m23-qrmw by updating openssl to version 0.10.66

[BlackDex]

Thanks for the PR/
There are a few crates which also could be updated, update those versions and run crago update again.

A nice VSCode extension is Dependi which is able to show which versions are the latest version of a specific crate. You still need to verify if you can update those of course.

Also the cargo-outdated crate is a nice tool to use, you could run it like this cargo outdated -R which would show updated versions of crates which might need code adjustments, but that is not always the case for some crates.

[dfunkt]

Updated the other crates as well this time (including Tokio to 1.39.1)
Only issue I encountered was the update to 6.0.0 of the handlebars crate (due to this commit sunng87/handlebars-rust@598dbd1):

error[E0639]: cannot create non-exhaustive struct using struct expression
    --> src/config.rs:1339:9
     |
1339 | /         DirectorySourceOptions {
1340 | |             tpl_extension: ".hbs".to_owned(),
1341 | |             ..Default::default()
1342 | |         },
     | |_________^

Not sure if I fixed it properly/the right way, still pretty new to Rust :)

[BlackDex]

Yes, the solution is good. Thanks!