feat: update CI configuration to install Node.js using nvm and remove pnpm action setup

Signed-off-by: Hendrik Ebbers <hendrik.ebbers@open-elements.com>

Author: hendrikebbers

.github/workflows/ci.yml

@@ -13,16 +13,13 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: pnpm/action-setup@v4
-        with:
-          version: 10
 
       - uses: actions/setup-node@v4
         with:
-          node-version: "22"
+          node-version-file: ".nvmrc"
           cache: "pnpm"
 
       - run: pnpm install --frozen-lockfile
-
       - run: pnpm run typecheck
       - run: pnpm run lint
       - run: pnpm run test