ci: Add caching

Author: dVeon-loch

.github/workflows/rust.yml

@@ -12,10 +12,14 @@ env:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ubicloud-standard-2
 
     steps:
     - uses: actions/checkout@v3
+    - uses: Swatinem/rust-cache@v2
+      with:
+        cache-on-failure: "true"
+        add-job-id-key: "false"
     - name: Build
       run: cargo build --verbose
     - name: Run tests
@@ -24,10 +28,14 @@ jobs:
 
   clippy_check:
 
-    runs-on: ubuntu-latest
-    
+    runs-on: ubicloud-standard-2
+
     steps:
       - uses: actions/checkout@v3
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: "true"
+          add-job-id-key: "false"
       - uses: actions-rs/toolchain@v1
         with:
             toolchain: stable