Upgrade v1 release line to arkworks 0.6

[dcbuild3r]

Summary

• upgrade ProveKit v1 from arkworks 0.5 to 0.6
• consume published provekit-spongefish, provekit-spongefish-pow, and provekit-whir 0.2.0 compatibility releases
• bump the six public ProveKit crates to 1.0.2
• reject arkworks 0.5 in the production dependency graph in CI

The provekit-whir 0.2.0 release was built from the exact source of published 0.1.1, with only dependency/package metadata changes, so this does not pull newer WHIR protocol changes into the v1 line.

Validation

• cargo fmt --all --check
• cargo clippy --all-targets --all-features --locked --verbose
• cargo build --all-targets --all-features --locked
• cargo test --no-fail-fast --all-features --locked --lib --tests --bins -- --nocapture
• cargo test --doc --all-features --locked
• RUSTDOCFLAGS="--cfg doc_cfg -D warnings" cargo doc --workspace --all-features --no-deps --document-private-items --locked
• regenerated mobile benchmark fixtures with Noir v1.0.0-beta.26; all smoke proofs pass
• go build ./... && go test -v -cover ./... && go vet ./...
• threaded wasm32-unknown-unknown release build, wasm-bindgen, and wasm-opt
• cargo package -p provekit-common --locked --allow-dirty
• production dependency tree contains no arkworks 0.5 crates