chore: add Swatinem/rust-cache to remaining workflows (#281)

- Add caching to publish-crates workflow to speed up publishing
- Add caching to cargo-deny workflow to speed up security checks
- Both workflows now use the same intelligent Rust caching as CI

Author: joshrotenberg

.github/workflows/cargo-deny.yml

@@ -2,20 +2,20 @@ name: Cargo Deny
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
     paths:
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-      - 'deny.toml'
-      - '.github/workflows/cargo-deny.yml'
+      - "**/Cargo.toml"
+      - "**/Cargo.lock"
+      - "deny.toml"
+      - ".github/workflows/cargo-deny.yml"
   pull_request:
     paths:
-      - '**/Cargo.toml'
-      - '**/Cargo.lock'
-      - 'deny.toml'
-      - '.github/workflows/cargo-deny.yml'
+      - "**/Cargo.toml"
+      - "**/Cargo.lock"
+      - "deny.toml"
+      - ".github/workflows/cargo-deny.yml"
   schedule:
-    - cron: '0 0 * * MON'  # Weekly on Monday
+    - cron: "0 0 * * MON" # Weekly on Monday
 
 jobs:
   cargo-deny:
@@ -34,17 +34,20 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a  # stable
+        uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a # stable
         with:
           toolchain: stable
 
+      - name: Cache cargo
+        uses: Swatinem/rust-cache@v2
+
       - name: Install cargo-deny
         uses: taiki-e/install-action@v2
         with:
           tool: cargo-deny@0.16.2
 
       - name: Run cargo-deny
-        run: cargo deny --all-features check ${{ matrix.checks }}
+        run: cargo deny --all-features check ${{ matrix.checks }}

.github/workflows/publish-crates.yml

@@ -43,6 +43,9 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
 
+      - name: Cache cargo
+        uses: Swatinem/rust-cache@v2
+
       - name: Install cargo-workspaces
         run: cargo install cargo-workspaces