avoid default features in many dependencies (etc.)

[brody4hire]

Connections

Some of these dependency updates are needed for no-std support:

• as requested in issue: Support no_std where possible (specifically for wasm32v1-none) #6826
• especially needed for naga - PR in progress: no-std support in naga #6940

I think making the dependency updates in this isolated PR can help keep the no-std updates cleaner & more focused.

Description

• use default-features = false for more dependencies in top-level Cargo.toml
• only use strum for wgsl-in in naga crate
• move some dependencies in top-level Cargo.toml

Testing

• checked CI testing results in personal branches:
  • https://github.com/brody4hire/wgpu/commits/brody-cargo-dep-cleanup-ci-testing
  • https://github.com/brody4hire/wgpu/commits/brody-pr-7031-ci-testing
• cargo hack --workspace --feature-powerset --depth 1 check (equivalent to using cargo hack --workspace --each-feature check) is now OK ✅

Checklist

• Run cargo fmt.
• Run taplo format.
• Run cargo clippy. If applicable, add:
  • --target wasm32-unknown-unknown
• Run cargo xtask test to run tests.
• Add change to CHANGELOG.md. See simple instructions inside file.

[ErichDonGubler]

Very nice! 😀