Enable GitHub Actions Yarn Caching (#1332)

Summary:
We sometimes see workflows fail due to network flakiness, almost always being Windows agents doing a `yarn install`. This change enables storing and reusing Yarn's package cache, and makes `yarn install` more permissive when it does hit the network. https://stackoverflow.com/questions/51508364/yarn-there-appears-to-be-trouble-with-your-network-connection-retrying

Pull Request resolved: https://github.com/facebook/yoga/pull/1332

Test Plan: Workflows succeed, and we see cache being restored before yarn install step.

Reviewed By: lunaleaps

Differential Revision: D48967590

Pulled By: NickGerleman

fbshipit-source-id: 55ce6f05496f014512e0153b6646a7ca0ab964d9

.github/workflows/validate-js.yml

@@ -65,8 +65,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: yarn install
-        run: yarn install --frozen-lockfile
+      - name: Setup
+        uses: ./.github/actions/setup-js
 
       - name: yarn lint
         run: yarn lint
@@ -77,9 +77,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: yarn install
-        run: yarn install --frozen-lockfile
-        working-directory: javascript
+      - name: Setup
+        uses: ./.github/actions/setup-js
 
       - name: yarn tsc
         run: yarn tsc