refactor: fix a bunch of simple warnings · DCNick3/unsafe-libopus@f1cd984

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, actions-rs/toolchain@v1, actions-rs/cargo@v1. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions-rs/toolchain@v1, actions-rs/cargo@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

src/celt/modes/static_modes_float_h.rs#L877

creating a shared reference to mutable static is discouraged

src/src/analysis.rs#L1507

creating a shared reference to mutable static is discouraged

src/src/analysis.rs#L1509

creating a shared reference to mutable static is discouraged

src/src/analysis.rs#L1514

creating a shared reference to mutable static is discouraged

`unsafe-libopus` (lib) generated 4 warnings

[email protected]: /Users/runner/work/unsafe-libopus/unsafe-libopus/target/release/build/upstream-libopus-e977590d0f0e96d4/out/opus_src/celt/bands.c:904:85: warning: parameter 'b' set but not used [-Wunused-but-set-parameter]

[email protected]: ^

[email protected]: /Applications/Xcode_15.0.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: /Users/runner/work/unsafe-libopus/unsafe-libopus/target/release/build/upstream-libopus-e977590d0f0e96d4/out/opus_build/libopus.a(2312fccb5e8e2543-debug.o) has no symbols