Cache dependencies, and use version specified in go.mod

Author: auxesis

.github/workflows/test-goeql.yml

@@ -22,11 +22,9 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-go@v5
       with:
-        go-version: ^1.21
-      id: go
-
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v2
+        go-version-file: languages/go/goeql/go.mod
+        cache-dependency-path: |
+          languages/go/goeql/go.mod
 
     - name: Get dependencies
       run: |