chore(actions): update fwal/setup-swift action to v2

Author: renovate[bot]

.github/workflows/pull-request.yml

@@ -55,7 +55,7 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-spm-
 
-    - uses: fwal/setup-swift@v1
+    - uses: fwal/setup-swift@v2
       with:
         swift-version: "5.7"