ci: combine codegen and manifest gen (#511)

Author: sozercan

.github/workflows/test.yaml

@@ -104,7 +104,7 @@ jobs:
           fail_ci_if_error: false
 
   check-manifest:
-    name: "Check Manifest"
+    name: "Check codegen and manifest"
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
@@ -122,29 +122,7 @@ jobs:
         run: |
           go mod tidy
           git diff --exit-code
-          make manifests
-          git diff --exit-code
-
-  check-codegen:
-    name: "Check Codegen"
-    runs-on: ubuntu-latest
-    timeout-minutes: 5
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@2e205a28d0e1da00c5f53b161f4067b052c61f34
-        with:
-          egress-policy: audit
-      - name: Check out code
-        uses: actions/checkout@v3
-      - name: Set up Go 1.19
-        uses: actions/setup-go@v3
-        with:
-          go-version: 1.19
-      - name: Check codegen
-        run: |
-          go mod tidy
-          git diff --exit-code
-          make generate
+          make generate manifests
           git diff --exit-code
 
   e2e-test: