Fix directory where dependency check is performed from

.forgejo/workflows/ci.yml

@@ -49,7 +49,8 @@ jobs:
       - name: Check if dependencies changed
         id: check-deps
         run: |
-          # Get hash of Cargo.toml and Cargo.lock
+          # Change to repository directory and get hash of Cargo.toml and Cargo.lock
+          cd "$GITHUB_WORKSPACE"
           DEPS_HASH=$(sha256sum Cargo.toml Cargo.lock | sha256sum | cut -d' ' -f1)
           echo "deps_hash=$DEPS_HASH" >> $GITHUB_OUTPUT