ci: specify proper paths to node and python version

Author: raczu

.github/workflows/development.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version-file: ".python-version"
+          python-version-file: "./backend/.python-version"
 
       - name: install uv
         uses: astral-sh/setup-uv@v6
@@ -35,8 +35,9 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v6
         with:
-            node-version-file: ".nvmrc"
+            node-version-file: "./frontend/.nvmrc"
             cache: "yarn"
+            cache-dependency-path: "./frontend/yarn.lock"
 
       - name: install dependencies
         run: yarn install --frozen-lockfile