Update go

.github/workflows/lint.yaml

@@ -11,12 +11,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v5
         with:
-          go-version: 1.19
+          go-version: 1.20.x
 
       - name: Get Dependencies
         run: go get -v -t -d ./...

.github/workflows/test.yaml

@@ -11,12 +11,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v5
         with:
-          go-version: 1.19
+          go-version: 1.20.x
 
       - name: Get Dependencies
         run: go get -v -t -d ./...

go.mod

@@ -1,6 +1,6 @@
 module github.com/ssvlabs/ssv-spec
 
-go 1.19
+go 1.20
 
 require (
 	github.com/attestantio/go-eth2-client v0.19.7 // if version is changed, types/generate.go needs adjustment