ci: install yarn for actions on forgejo

Summary:

The forgejo action use act under the hood. The default image does not have yarn
installed so, this is installing it.

Test Plan:

CI

.github/workflows/ci.yml

@@ -12,15 +12,15 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
+      - name: Install yarn
+        run: npm i -g yarn
+
       - name: Set up Node
         uses: actions/setup-node@v3
         with:
           node-version: 18
           cache: yarn
 
-      - name: Install yarn
-        run: npm i -g yarn
-
       - name: Install dependencies
         run: yarn install
 
@@ -41,15 +41,15 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
+      - name: Install yarn
+        run: npm i -g yarn
+
       - name: Set up Node
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
           cache: yarn
 
-      - name: Install yarn
-        run: npm i -g yarn
-
       - name: Install dependencies
         run: yarn install