Update GO version in the go.mod and read it by the job to setup the testing environment for unit tests (#980)

Co-authored-by: Konstantin Koval

.github/workflows/tests.yml

@@ -51,14 +51,18 @@ jobs:
         working-directory: api
 
     steps:
-      - name: Set up Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: ^1.22
-        id: go
-
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
+
+      - name: Fetch branches
+        run: git fetch --all
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        id: go
+        with:
+          go-version-file: ${{ github.workspace }}/api/go.mod
+          cache: false
 
       - name: Cache Go dependencies
         uses: actions/cache@v2