feat(registry): added oxipng

[ldrouard]

Oxipng is a multithreaded lossless PNG/APNG compression optimizer

Tests :

mise use -g aqua:shssoichiro/oxipng

mise aqua:shssoichiro/[email protected] ✓ installed
mise ~/.config/mise/config.toml tools: aqua:shssoichiro/[email protected]

[jdx]

needs a test

[ldrouard]

Update tests :

cargo run --bin mise -- tool oxipng

    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
     Running `target/debug/mise tool oxipng`
Backend:            aqua:shssoichiro/oxipng
Installed Versions:
Active Version:     9.1.4
Requested Version:  latest
Config Source:      ~/.config/mise/config.toml
Tool Options:       [none]

cargo run --bin mise -- use -g oxipng

    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
     Running `target/debug/mise use -g oxipng`
mise [email protected]     ✓ installed                                                                                                                                                         mise ~/.config/mise/config.toml tools: [email protected]

cargo run --bin mise -- tool oxipng

    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
     Running `target/debug/mise tool oxipng`
Backend:            aqua:shssoichiro/oxipng
Description:        Multithreaded PNG optimizer written in Rust
Installed Versions: 9.1.4
Active Version:     9.1.4
Requested Version:  latest
Config Source:      ~/.config/mise/config.toml
Tool Options:       [none]

[ldrouard]

Rebase and rerun CI tests after this PR.