fix(ci): fix cache path in CI workflow

Author: secsovereign

.github/workflows/ci.yml

@@ -48,8 +48,8 @@ jobs:
           path: |
             ~/.cargo/registry
             ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+            bitvault-app/target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('bitvault-app/Cargo.lock') }}
           restore-keys: |
             ${{ runner.os }}-cargo-