Set clippy lints in workspace (requires rust 1.74) (#2390)

We currently use a bit of a hack in `.cargo/config` to make sure that
clippy isn't too annoying by specifying the list of lints.

There is now a stable way to define lints for a workspace. The only down
side is that every crate seems to have to opt into this so there's a
*few* files modified in this PR.

Dependencies:

- [x] PR that upgrades CI to use rust 1.74 is merged.

---------

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Branislav Kontur <bkontur@gmail.com>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>

substrate/frame/contracts/Cargo.toml

@@ -11,6 +11,9 @@ description = "FRAME pallet for WASM contracts"
 readme = "README.md"
 include = ["CHANGELOG.md", "README.md", "benchmarks/**", "build.rs", "src/**/*"]
 
+[lints]
+workspace = true
+
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
 

substrate/frame/contracts/fixtures/Cargo.toml

@@ -7,6 +7,9 @@ edition.workspace = true
 license.workspace = true
 description = "Fixtures for testing contracts pallet."
 
+[lints]
+workspace = true
+
 [dependencies]
 wat = "1"
 frame-system = { path = "../../system" }

substrate/frame/contracts/fixtures/contracts/common/Cargo.toml

@@ -6,3 +6,6 @@ authors.workspace = true
 edition.workspace = true
 license.workspace = true
 description = "Common utilities for pallet-contracts-fixtures."
+
+[lints]
+workspace = true

substrate/frame/contracts/mock-network/Cargo.toml

@@ -8,6 +8,9 @@ homepage = "https://substrate.io"
 repository.workspace = true
 description = "A mock network for testing pallet-contracts"
 
+[lints]
+workspace = true
+
 [dependencies]
 codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false, features = ["derive", "max-encoded-len"] }
 

substrate/frame/contracts/primitives/Cargo.toml

@@ -9,6 +9,9 @@ repository.workspace = true
 description = "A crate that hosts a common definitions that are relevant for the pallet-contracts."
 readme = "README.md"
 
+[lints]
+workspace = true
+
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
 

substrate/frame/contracts/proc-macro/Cargo.toml

@@ -8,6 +8,9 @@ homepage = "https://substrate.io"
 repository.workspace = true
 description = "Procedural macros used in pallet_contracts"
 
+[lints]
+workspace = true
+
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
 

substrate/frame/contracts/uapi/Cargo.toml

@@ -8,6 +8,9 @@ homepage = "https://substrate.io"
 repository.workspace = true
 description = "Exposes all the host functions that a contract can import."
 
+[lints]
+workspace = true
+
 [dependencies]
 paste = { version = "1.0", default-features = false }
 bitflags = "1.0"