Add proper go modules caching to v2 and v3

Author: paskal

.github/workflows/ci-v2.yml

@@ -22,6 +22,7 @@ jobs:
         with:
           go-version: "1.20"
         id: go
+        cache-dependency-path: v2
 
       - name: checkout
         uses: actions/checkout@v4

.github/workflows/ci-v3.yml

@@ -22,6 +22,7 @@ jobs:
         with:
           go-version: "1.20"
         id: go
+        cache-dependency-path: v3
 
       - name: checkout
         uses: actions/checkout@v4