Upgrade backend dependencies and base images

.github/dependabot.yml

@@ -39,7 +39,7 @@ updates:
       interval: "weekly"
     ignore:
       - dependency-name: "node"
-        versions: ["19-alpine3.18", "20-alpine3.18"]
+        versions: ["19-alpine3.19", "20-alpine3.19", "21-alpine3.19"]
 
   - package-ecosystem: "docker"
     directory: "/database/migrations"

.github/workflows/ci.yml

@@ -13,38 +13,26 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
       - name: Setup Rust
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.74.0
-          profile: minimal
+          toolchain: 1.75.0
           components: clippy, rustfmt
-          override: true
       - name: Run clippy
-        uses: actions-rs/cargo@v1
-        with:
-          command: clippy
-          args: --all-targets --all-features -- --deny warnings
+        run: cargo clippy --all-targets --all-features -- --deny warnings
       - name: Run rustfmt
-        uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
+        run: cargo fmt --all -- --check
 
   tests-backend:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
       - name: Setup Rust
-        uses: actions-rs/toolchain@v1
+        uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.74.0
-          profile: minimal
-          override: true
+          toolchain: 1.75.0
       - name: Run backend tests
-        uses: actions-rs/cargo@v1
-        with:
-          command: test
+        run: cargo test
 
   tests-frontend:
     runs-on: ubuntu-latest