Don't repeat initialization steps for sanity-test composite action (#3413)

Initialization does not have to be done for every step as they do get carried over.

---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [x] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [ ] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E

.github/actions/backup-restore-test/action.yml

@@ -29,17 +29,6 @@ outputs:
 runs:
   using: composite
   steps:
-    - uses: actions/checkout@v3
-
-    - name: Setup Golang with cache
-      uses: magnetikonline/action-golang-cache@v4
-      with:
-        go-version-file: src/go.mod
-
-    - run: go build -o corso
-      shell: bash
-      working-directory: src
-
     - name: Backup ${{ inputs.service }} ${{ inputs.kind }}
       id: backup
       shell: bash
@@ -80,7 +69,7 @@ runs:
         TEST_DATA: ${{ inputs.test-folder }}
         BASE_BACKUP: ${{ inputs.base-backup }}
       run: |
-        go run ./cmd/sanity_test
+        ./sanity-test
 
     - name: List ${{ inputs.service }} ${{ inputs.kind }}
       shell: bash

.github/workflows/sanity-test.yaml

@@ -58,6 +58,8 @@ jobs:
           go-version-file: src/go.mod
 
       - run: make build
+      - run: go build -o sanity-test ./cmd/sanity_test
+
       - run: mkdir ${TEST_RESULT}
       - run: mkdir ${CORSO_LOG_DIR}