Bug 1716518 - Upgrade aho-corasick to v0.7.18. r=emilio

Cargo.lock

third_party/rust/aho-corasick/.cargo-checksum.json

third_party/rust/aho-corasick/Cargo.toml

third_party/rust/aho-corasick/DESIGN.md

third_party/rust/aho-corasick/README.md

third_party/rust/aho-corasick/src/ahocorasick.rs

third_party/rust/aho-corasick/src/automaton.rs

third_party/rust/aho-corasick/src/buffer.rs

third_party/rust/aho-corasick/src/classes.rs

third_party/rust/aho-corasick/src/dfa.rs

third_party/rust/aho-corasick/src/error.rs

third_party/rust/aho-corasick/src/lib.rs

third_party/rust/aho-corasick/src/nfa.rs

third_party/rust/aho-corasick/src/packed/api.rs

third_party/rust/aho-corasick/src/packed/mod.rs

third_party/rust/aho-corasick/src/packed/pattern.rs

third_party/rust/aho-corasick/src/packed/rabinkarp.rs

third_party/rust/aho-corasick/src/packed/teddy/compile.rs

third_party/rust/aho-corasick/src/packed/teddy/mod.rs

third_party/rust/aho-corasick/src/packed/teddy/runtime.rs