Luni-4

Deploy cargo-outdated automatically

2

To speed up CI jobs that use `cargo-outdated` and avoid running the `cargo install cargo-outdated` command, I think it would be helpful to automatically deploy `cargo-outdated` on `Linux`, `MacOS` and...

[axum](https://github.com/tokio-rs/axum) is more straightforward and has less dependencies

It would be better that all files are written by a sink thread that collects all produced pieces of data and then writes them down

Some macros could be replaced with generics, making the code more comprehensible

Implement metrics for Java code

16

Currently no metrics have been implemented for the `Java` code

Add more integration tests for the lib

2

We should add more integration tests for the languages we are already providing in the lib

Add more integration tests for the web server

2

We should add more integration tests for web server

`Clippy` signals, with the `cmp_owned` lint, that there are allocations when languages are compared with the `PartialEq` trait

Implement an else-if checker for each grammar

1

This PR implements a specific `else-if` checker for each grammar.

Use a stack approach for cognitive complexity

1

Currently the cognitive complexity metric analyzes the nodes using ancestors. It would be helpful to analyze the nodes using a stack approach