chore: update release-wasm-component to Rust 1.89

Align with the rest of the codebase which uses Rust 1.89.
Also remove redundant version sync workflows that are no longer needed.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: bowlofarugula

.github/workflows/release-wasm-component.yml

@@ -17,7 +17,7 @@ on:
         type: string
 
 env:
-  RUST_VERSION: '1.83.0'
+  RUST_VERSION: '1.89'
   CARGO_TERM_COLOR: always
   RUSTFLAGS: "-D warnings"
   RUST_BACKTRACE: 1