Add job to download go modules

This commit adds a job that downloads all go modules to populate the cache, this is
ran prior to the generate and test jobs which should save some time.

Signed-off-by: David Bond <davidsbond93@gmail.com>

Author: davidsbond

.github/workflows/go.yml

@@ -20,8 +20,25 @@ on:
       - '.github/workflows/go.yml'
 
 jobs:
+  mod:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4.2.2
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Download Modules
+        run: go mod download
+
   test:
     runs-on: ubuntu-latest
+    needs:
+      - mod
     steps:
       - name: Checkout
         uses: actions/checkout@v4.2.2
@@ -37,6 +54,8 @@ jobs:
 
   generate:
     runs-on: ubuntu-latest
+    needs:
+      - mod
     steps:
       - name: Checkout
         uses: actions/checkout@v4.2.2
@@ -50,7 +69,7 @@ jobs:
       - name: Generate
         run: make generate
 
-      - name: Check changes
+      - name: Check Changes
         run: |
           git add .
           git diff --staged --exit-code