fix(ci): cache rust much less aggressively

.github/workflows/test-e2e.yml

@@ -71,26 +71,6 @@ jobs:
         uses: actions/setup-node@v6
         with:
           node-version: "22"
-          cache: "npm"
-          cache-dependency-path: frontend/package-lock.json
-
-      - name: Cache cargo registry
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-registry-
-
-      - name: Cache target directory
-        uses: actions/cache@v4
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-target-release-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-target-release-
 
       - name: Build backend
         run: cargo build --release

.github/workflows/test-integration.yml

@@ -111,24 +111,6 @@ jobs:
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@stable
 
-      - name: Cache cargo registry
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-registry-
-
-      - name: Cache target directory
-        uses: actions/cache@v4
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-target-release-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-target-release-
-
       - name: Build readur binary
         run: cargo build --release
 

.github/workflows/test-unit.yml

@@ -47,24 +47,6 @@ jobs:
         with:
           components: rustfmt, clippy
 
-      - name: Cache cargo registry
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-registry-
-
-      - name: Cache target directory
-        uses: actions/cache@v4
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-target-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-target-
-
       - name: Run Rust unit tests - lib only
         run: |
           cargo test --lib --no-fail-fast