New .go-matrix-job job for golang matrix testing

.gitlab-ci.yml

@@ -66,6 +66,11 @@ default:
       paths:
         - ${BUNDLE_PATH}
 
+.go-matrix-job:
+  parallel:
+    matrix:
+      - GO_VERSION: ["golang-1.18", "golang-1.19", "golang-1.20"]
+
 ################################################################################
 # Prepare jobs
 ################################################################################
@@ -78,10 +83,9 @@ bundle:install:
 
 modules:download:
   stage: prepare
-  extends: .cached-job
-  parallel:
-    matrix:
-      - GO_VERSION: ["golang-1.18", "golang-1.19", "golang-1.20"]
+  extends:
+    - .cached-job
+    - .go-matrix-job
   script:
     - go mod download
 
@@ -109,10 +113,8 @@ modules:download:
 tests:
   extends:
     - .cached-job
+    - .go-matrix-job
     - .test-job
-  parallel:
-    matrix:
-      - GO_VERSION: ["golang-1.18", "golang-1.19", "golang-1.20"]
   script:
     - make verify test
   after_script:
@@ -122,10 +124,8 @@ tests:
 race:
   extends:
     - .cached-job
+    - .go-matrix-job
     - .test-job
-  parallel:
-    matrix:
-      - GO_VERSION: ["golang-1.18", "golang-1.19", "golang-1.20"]
   script:
     - make test_golang_race