Add react-router-dom to peer deps and test also on node 20 (#57)

Signed-off-by: Łukasz Jernaś <lukasz.jernas@allegro.com>

Author: deejay1

.github/workflows/ci.yml

@@ -10,11 +10,18 @@ jobs:
   test:
     runs-on: ubuntu-latest
 
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [ 18.x, 20.x ]
+
+    name: Test ${{ matrix.node-version }}
+
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-node@v4
       with:
-        node-version: 18
+        node-version: ${{ matrix.node-version }}
         cache: yarn
     - run: yarn install --frozen-lockfile
     - run: yarn tsc

package.json

@@ -44,7 +44,8 @@
   },
   "peerDependencies": {
     "react": "^16.13.1 || ^17.0.0 || ^18.0.0",
-    "react-dom": "^16.13.1 || ^17.0.0 || ^18.0.0"
+    "react-dom": "^16.13.1 || ^17.0.0 || ^18.0.0",
+    "react-router-dom": "^6.3.0"
   },
   "devDependencies": {
     "@backstage/cli": "^0.28.0",