feat(debug): Adding CLI for testing liquid

[epage]

This will allow tools like cobalt to dump their intermediate state so both tools can be debugged independently.

[epage]

This causes skeptic tests to fail (on my machine)

For example

test readme_1 ... FAILED
error[E0464]: multiple matching crates for `liquid`
 --> C:\Users\EPAGE~1.AME\AppData\Local\Temp\rust-skeptic.vn1Pegi19gtZ\test.rs:1:23
  |
1 | extern crate skeptic; extern crate liquid; fn main() { use liquid::{LiquidOptions, Renderable, Context, Error};
  |                       ^^^^^^^^^^^^^^^^^^^^
  |
  = note: candidates:
  = note: path: \\?\P:\_OTHER\git\liquid-rust\target\debug\deps\libliquid-52d5eee7cd2f0e12.rlib
  = note: crate name: liquid
  = note: path: \\?\P:\_OTHER\git\liquid-rust\target\debug\deps\libliquid-82a0161f352a3810.rlib
  = note: crate name: liquid
  = note: path: \\?\P:\_OTHER\git\liquid-rust\target\debug\deps\libliquid-0487cd98885ec900.rlib
  = note: crate name: liquid
  = note: path: \\?\P:\_OTHER\git\liquid-rust\target\debug\deps\libliquid-418804126e8745a1.rlib
  = note: crate name: liquid
  = note: crate name: liquid
  = note: crate name: liquid

Any ideas what is going on?

EDIT: Resolved through a combination of dependency upgrades and removing the caching of the target folder in the CI

[epage]

CI failure is only on nightly and due to Clippy