misc: remove cargo fmt setup action as it is already available (#15)

This PR remove the unneeded action that install rustfmt as it is now
already available. It remove a step in the CI.

The action removed is `dtolnay/rust-toolchain@stable`

---------

Co-authored-by: Facundo Farall <37149322+ffarall@users.noreply.github.com>

.github/workflows/rust-lint.yml

@@ -58,11 +58,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          components: rustfmt
-
       - name: Cache dependencies
         uses: Swatinem/rust-cache@v2
 

.github/workflows/rust-tests.yml

@@ -59,9 +59,6 @@ jobs:
           # By default actions/checkout checks out a merge commit. Check out the PR head instead.
           # https://github.com/actions/checkout#checkout-pull-request-head-commit-instead-of-merge-commit
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: actions-rust-lang/setup-rust-toolchain@v1.8
-        with:
-          cache: false
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@v0.0.4
       - uses: rui314/setup-mold@v1

operator/node/src/command.rs

@@ -33,7 +33,7 @@ impl SubstrateCli for Cli {
     }
 
     fn copyright_start_year() -> i32 {
-        2017
+        2025
     }
 
     fn load_spec(&self, id: &str) -> Result<Box<dyn sc_service::ChainSpec>, String> {