Bump pinned `aho-corasick` to 1.1.3 · zcash/halo2@b672cee

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`

Build benchmarks: halo2_proofs/src/multicore.rs#L16

unused import: `Scope`

Build benchmarks: halo2_proofs/src/dev/cost.rs#L105

unused doc comment

Build benchmarks: halo2_proofs/src/dev/cost.rs#L107

unused doc comment

Build benchmarks: halo2_proofs/src/dev/cost.rs#L109

unused doc comment

Build benchmarks: halo2_proofs/src/plonk/circuit.rs#L769

struct `PointIndex` is never constructed

`halo2_proofs` (lib) generated 5 warnings (run `cargo fix --lib -p halo2_proofs` to apply 1 suggestion)

Build benchmarks: halo2_proofs/examples/circuit-layout.rs#L13

fields `0` and `1` are never read

`halo2_proofs` (example "circuit-layout") generated 1 warning

`halo2_proofs` (bench "plonk") generated 1 warning

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