ci: add rust-cache

.github/workflows/build.yml

@@ -45,6 +45,9 @@ jobs:
         with:
           toolchain: 1.96.0
 
+      - name: Rust Cache
+        uses: swatinem/rust-cache@v2
+
       - name: Run tests
         run: cargo test --locked
 
@@ -135,6 +138,9 @@ jobs:
         with:
           toolchain: 1.96.0
 
+      - name: Rust Cache
+        uses: swatinem/rust-cache@v2
+
       - name: Build all binaries (debug-speed compilation into target/release)
         env:
           CARGO_PROFILE_RELEASE_OPT_LEVEL: 0

.github/workflows/flatter.yml

@@ -60,9 +60,9 @@ jobs:
           echo "default-branch: ${{ steps.set_branch.outputs.branch }}" >> packages/flatpak/ru.arabianq.pwsp.yaml
 
       - name: Install SDK Extensions
-        run:
+        run: |
           flatpak install -y flathub org.freedesktop.Sdk.Extension.rust-stable//25.08
-          org.freedesktop.Sdk.Extension.llvm20//25.08
+          flatpak install -y flathub org.freedesktop.Sdk.Extension.llvm20//25.08
 
       - name: Build Flatpak
         uses: andyholmes/flatter@main
@@ -72,6 +72,7 @@ jobs:
           upload-bundles: false
           upload-pages-artifact: false
           arch: x86_64
+          cache: true
 
   flatter-arm64:
     name: Flatter (aarch64)
@@ -113,9 +114,9 @@ jobs:
           echo "default-branch: ${{ steps.set_branch.outputs.branch }}" >> packages/flatpak/ru.arabianq.pwsp.yaml
 
       - name: Install SDK Extensions
-        run:
+        run: |
           flatpak install -y flathub org.freedesktop.Sdk.Extension.rust-stable//25.08
-          org.freedesktop.Sdk.Extension.llvm20//25.08
+          flatpak install -y flathub org.freedesktop.Sdk.Extension.llvm20//25.08
 
       - name: Build Flatpak
         uses: andyholmes/flatter@main
@@ -125,6 +126,7 @@ jobs:
           upload-bundles: false
           upload-pages-artifact: true
           arch: aarch64
+          cache: true
 
   deploy:
     name: Deploy to GitHub Pages

.github/workflows/release.yml

@@ -97,6 +97,9 @@ jobs:
         with:
           toolchain: 1.96.0
 
+      - name: Rust Cache
+        uses: swatinem/rust-cache@v2
+
       - name: Extract all binary names
         id: cargo-meta
         run: |
@@ -180,6 +183,9 @@ jobs:
         with:
           toolchain: 1.96.0
 
+      - name: Rust Cache
+        uses: swatinem/rust-cache@v2
+
       - name: Build all release binaries
         run: cargo build --release --locked
 
@@ -258,4 +264,3 @@ jobs:
                             --commit ${{ needs.prepare.outputs.tag }} \
                             --spec packages/rpm/pwsp.spec \
                             arabianq/pwsp
-