fix: simplify Cargo.toml (#282)

Fixes #

### What Changed?

This PR simplifies the `Cargo.toml` by removing "dotted keys which
specify inlined table" related to issue
dependabot/dependabot-core#10453.

### Reviewer Checklist

- [ ] New features are tested and documented
- [ ] PR updates the changelog with a description of changes
- [ ] PR has one of the `changelog-X` labels (if applies)
- [ ] Code deprecates any old functionality before removing it

Author: MegaRedHand

Cargo.toml

@@ -37,12 +37,14 @@ repository = "https://github.com/Layr-Labs/eigensdk-rs"
 homepage = ""
 license-file = "LICENSE"
 
+[workspace.lints.rust]
+missing_debug_implementations = "warn"
+missing_docs = "warn"
+unreachable_pub = "warn"
+unused_must_use = "deny"
+rust_2018_idioms = { level = "deny", priority = -1 }
+
 [workspace.lints]
-rust.missing_debug_implementations = "warn"
-rust.missing_docs = "warn"
-rust.unreachable_pub = "warn"
-rust.unused_must_use = "deny"
-rust.rust_2018_idioms = { level = "deny", priority = -1 }
 rustdoc.all = "warn"
 clippy.unwrap_used = "warn"
 clippy.expect_used = "warn"